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 - 308x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Inside Diameter (ID) Section (t) Colour Hardness Indicative
Image
General Purpose O-Rings - 308x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 308x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-350-N70 (PK-350)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,377.32 AUD
Regular price Sale price $1,377.32 AUD
Priced, Stocked and Sold Per 350 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 308x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-350-N70 (PK-350)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,377.32 AUD
Regular price Sale price $1,377.32 AUD
Priced, Stocked and Sold Per 350 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 308x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 308x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
308.00
mm

(Equiv. 12.126 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 308x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30800-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 309x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 309x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 309x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 309x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 309x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 309x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
309.00
mm

(Equiv. 12.165 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 309x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-30900-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 310x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 310x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 310x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-400-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,039.32 AUD
Regular price Sale price $1,039.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 310x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-400-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,039.32 AUD
Regular price Sale price $1,039.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 310x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-500-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,158.59 AUD
Regular price Sale price $1,158.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 310x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-500-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,158.59 AUD
Regular price Sale price $1,158.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 310x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-600-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 310x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.00
mm

(Equiv. 12.205 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31000-600-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 310.5x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.50
mm

(Equiv. 12.224 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310.5x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31050-699-N70-648 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 310.5x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
310.50
mm

(Equiv. 12.224 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 310.5x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31050-699-N70-648 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 311x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 311x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 311x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 311x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 311x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 311x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 311x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-600-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 311x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
311.00
mm

(Equiv. 12.244 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 311x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31100-600-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 312x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 312x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 312x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-400-N70 (PK-310)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,490.50 AUD
Regular price Sale price $1,490.50 AUD
Priced, Stocked and Sold Per 310 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 312x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-400-N70 (PK-310)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,490.50 AUD
Regular price Sale price $1,490.50 AUD
Priced, Stocked and Sold Per 310 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 312x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 312x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
312.00
mm

(Equiv. 12.283 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 312x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31200-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 313x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 313x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 313x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-350-N70 (PK-340)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,357.23 AUD
Regular price Sale price $1,357.23 AUD
Priced, Stocked and Sold Per 340 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 313x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-350-N70 (PK-340)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,357.23 AUD
Regular price Sale price $1,357.23 AUD
Priced, Stocked and Sold Per 340 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 313x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 313x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
313.00
mm

(Equiv. 12.323 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 313x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31300-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 314x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-350-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $604.95 AUD
Regular price Sale price $604.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 314x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-350-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $604.95 AUD
Regular price Sale price $604.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 314x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 314x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028
General Purpose O-Rings - 314x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 314x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
314.00
mm

(Equiv. 12.362 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 314x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31400-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Sep 21, 2028