Collection: O-Rings - General Purpose - Nitrile Rubber Bulk

O-Rings -> General Purpose -> Nitrile Rubber Bulk
Inside Diameter (ID) Section (t) Colour Hardness Special Applications Indicative
Image
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.42
mm

(Equiv. 4.859 in.)
Section (t)
3.53
mm

(Equiv. 0.139 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12342-353-N70-249 (PK-250)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $337.95 AUD
Regular price Sale price $337.95 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Inside Diameter (ID) Section (t) Colour Hardness Indicative
Image
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.42
mm

(Equiv. 4.859 in.)
Section (t)
3.53
mm

(Equiv. 0.139 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12342-353-N70-249 (PK-250)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $337.95 AUD
Regular price Sale price $337.95 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.42
mm

(Equiv. 4.859 in.)
Section (t)
3.53
mm

(Equiv. 0.139 in.)
Colour
Black

Hardness
Duro 90
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12342-353-N90-249 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $270.41 AUD
Regular price Sale price $270.41 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.42
mm

(Equiv. 4.859 in.)
Section (t)
3.53
mm

(Equiv. 0.139 in.)
Colour
Black

Hardness
Duro 90
General Purpose O-Rings - 123.42x3.53 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12342-353-N90-249 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $270.41 AUD
Regular price Sale price $270.41 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 123.44x1.78 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.44
mm

(Equiv. 4.86 in.)
Section (t)
1.78
mm

(Equiv. 0.07 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.44x1.78 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12344-178-N70-546 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 123.44x1.78 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.44
mm

(Equiv. 4.86 in.)
Section (t)
1.78
mm

(Equiv. 0.07 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.44x1.78 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12344-178-N70-546 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 123.83x5.33 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.83
mm

(Equiv. 4.875 in.)
Section (t)
5.33
mm

(Equiv. 0.21 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.83x5.33 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12383-533-N70-862 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $495.95 AUD
Regular price Sale price $495.95 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 123.83x5.33 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
123.83
mm

(Equiv. 4.875 in.)
Section (t)
5.33
mm

(Equiv. 0.21 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 123.83x5.33 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12383-533-N70-862 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $495.95 AUD
Regular price Sale price $495.95 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-250-N70 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $482.05 AUD
Regular price Sale price $482.05 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-250-N70 (PK-500)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $482.05 AUD
Regular price Sale price $482.05 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-300-N70 (PK-895)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $797.95 AUD
Regular price Sale price $797.95 AUD
Priced, Stocked and Sold Per 895 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-300-N70 (PK-895)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $797.95 AUD
Regular price Sale price $797.95 AUD
Priced, Stocked and Sold Per 895 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-350-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-350-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-400-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-400-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
4.50
mm

(Equiv. 0.177 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-450-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
4.50
mm

(Equiv. 0.177 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-450-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-570-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-570-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-500-N70 (PK-150)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $357.86 AUD
Regular price Sale price $357.86 AUD
Priced, Stocked and Sold Per 150 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-500-N70 (PK-150)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $357.86 AUD
Regular price Sale price $357.86 AUD
Priced, Stocked and Sold Per 150 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-600-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.00
mm

(Equiv. 4.882 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12400-600-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.30
mm

(Equiv. 4.894 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12430-570-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.30
mm

(Equiv. 4.894 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12430-570-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124.6x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.60
mm

(Equiv. 4.906 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.6x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12460-699-N70-625 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 124.6x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.60
mm

(Equiv. 4.906 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.6x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12460-699-N70-625 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 124.5x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.50
mm

(Equiv. 4.902 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.5x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12450-300-N70 (PK-300)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $327.05 AUD
Regular price Sale price $327.05 AUD
Priced, Stocked and Sold Per 300 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 124.5x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
124.50
mm

(Equiv. 4.902 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 124.5x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12450-300-N70 (PK-300)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $327.05 AUD
Regular price Sale price $327.05 AUD
Priced, Stocked and Sold Per 300 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-250-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 125x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-250-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028
General Purpose O-Rings - 125x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-300-N70 (PK-885)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $794.59 AUD
Regular price Sale price $794.59 AUD
Priced, Stocked and Sold Per 885 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.00
mm

(Equiv. 0.118 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-300-N70 (PK-885)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $794.59 AUD
Regular price Sale price $794.59 AUD
Priced, Stocked and Sold Per 885 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-350-N70 (PK-775)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $837.50 AUD
Regular price Sale price $837.50 AUD
Priced, Stocked and Sold Per 775 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-350-N70 (PK-775)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $837.50 AUD
Regular price Sale price $837.50 AUD
Priced, Stocked and Sold Per 775 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x3.55 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.55
mm

(Equiv. 0.14 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3.55 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-355-N70 (PK-800)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $854.41 AUD
Regular price Sale price $854.41 AUD
Priced, Stocked and Sold Per 800 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x3.55 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
3.55
mm

(Equiv. 0.14 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x3.55 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-355-N70 (PK-800)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $854.41 AUD
Regular price Sale price $854.41 AUD
Priced, Stocked and Sold Per 800 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-400-N70 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $334.68 AUD
Regular price Sale price $334.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-400-N70 (PK-200)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $334.68 AUD
Regular price Sale price $334.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-500-N70 (PK-520)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $938.68 AUD
Regular price Sale price $938.68 AUD
Priced, Stocked and Sold Per 520 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-500-N70 (PK-520)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $938.68 AUD
Regular price Sale price $938.68 AUD
Priced, Stocked and Sold Per 520 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x5.3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
5.30
mm

(Equiv. 0.209 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x5.3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-530-N70 (PK-475)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $948.77 AUD
Regular price Sale price $948.77 AUD
Priced, Stocked and Sold Per 475 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x5.3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
5.30
mm

(Equiv. 0.209 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x5.3 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-530-N70 (PK-475)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $948.77 AUD
Regular price Sale price $948.77 AUD
Priced, Stocked and Sold Per 475 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-600-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $346.41 AUD
Regular price Sale price $346.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 125x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
125.00
mm

(Equiv. 4.921 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 125x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12500-600-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 27, 2026
Regular price $346.41 AUD
Regular price Sale price $346.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 126x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
126.00
mm

(Equiv. 4.961 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 126x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12600-250-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 126x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
126.00
mm

(Equiv. 4.961 in.)
Section (t)
2.50
mm

(Equiv. 0.098 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 126x2.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-12600-250-N70 (PK-10000)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Sat, Sep 23, 2028