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 - 315x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-350-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 - 315x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-350-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 - 315x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
4.50
mm

(Equiv. 0.177 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-450-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 315x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
4.50
mm

(Equiv. 0.177 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x4.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-450-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 - 315x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-500-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,165.05 AUD
Regular price Sale price $1,165.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 315x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-500-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,165.05 AUD
Regular price Sale price $1,165.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 315x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-600-N70 (PK-60)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,171.05 AUD
Regular price Sale price $1,171.05 AUD
Priced, Stocked and Sold Per 60 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 315x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-600-N70 (PK-60)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,171.05 AUD
Regular price Sale price $1,171.05 AUD
Priced, Stocked and Sold Per 60 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 315x7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
7.00
mm

(Equiv. 0.276 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-700-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,791.86 AUD
Regular price Sale price $1,791.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 315x7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
315.00
mm

(Equiv. 12.402 in.)
Section (t)
7.00
mm

(Equiv. 0.276 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 315x7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31500-700-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,791.86 AUD
Regular price Sale price $1,791.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 316x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 316x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-350-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 - 316x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 316x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-400-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 - 316x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 316x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.00
mm

(Equiv. 12.441 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31600-500-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 - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.87
mm

(Equiv. 12.475 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31687-699-N70-454 (PK-80)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,675.86 AUD
Regular price Sale price $1,675.86 AUD
Priced, Stocked and Sold Per 80 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.87
mm

(Equiv. 12.475 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31687-699-N70-454 (PK-80)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,675.86 AUD
Regular price Sale price $1,675.86 AUD
Priced, Stocked and Sold Per 80 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.87
mm

(Equiv. 12.475 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 90
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31687-699-N90-454 (PK-70)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,466.50 AUD
Regular price Sale price $1,466.50 AUD
Priced, Stocked and Sold Per 70 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
316.87
mm

(Equiv. 12.475 in.)
Section (t)
6.99
mm

(Equiv. 0.275 in.)
Colour
Black

Hardness
Duro 90
General Purpose O-Rings - 316.87x6.99 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31687-699-N90-454 (PK-70)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,466.50 AUD
Regular price Sale price $1,466.50 AUD
Priced, Stocked and Sold Per 70 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 317x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 317x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-350-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 - 317x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-400-N70 (PK-310)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,496.32 AUD
Regular price Sale price $1,496.32 AUD
Priced, Stocked and Sold Per 310 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 317x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-400-N70 (PK-310)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,496.32 AUD
Regular price Sale price $1,496.32 AUD
Priced, Stocked and Sold Per 310 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 317x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 317x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
317.00
mm

(Equiv. 12.48 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 317x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31700-500-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 - 318x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 318x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-350-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 - 318x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 318x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-400-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 - 318x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-500-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 318x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
318.00
mm

(Equiv. 12.52 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 318x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31800-500-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 - 319x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.00
mm

(Equiv. 12.559 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31900-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 319x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.00
mm

(Equiv. 12.559 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31900-350-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 - 319x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.00
mm

(Equiv. 12.559 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31900-400-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 319x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.00
mm

(Equiv. 12.559 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31900-400-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 - 319.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.30
mm

(Equiv. 12.571 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31930-570-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 319.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
319.30
mm

(Equiv. 12.571 in.)
Section (t)
5.70
mm

(Equiv. 0.224 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 319.3x5.7 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-31930-570-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 - 320x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-350-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $616.23 AUD
Regular price Sale price $616.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-350-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $616.23 AUD
Regular price Sale price $616.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-400-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,072.41 AUD
Regular price Sale price $1,072.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
4.00
mm

(Equiv. 0.157 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x4 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-400-N70 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,072.41 AUD
Regular price Sale price $1,072.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-500-N70 (PK-250)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,577.77 AUD
Regular price Sale price $1,577.77 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
5.00
mm

(Equiv. 0.197 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-500-N70 (PK-250)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 25, 2026
Regular price $1,577.77 AUD
Regular price Sale price $1,577.77 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
General Purpose O-Rings - 320x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-600-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 320x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
320.00
mm

(Equiv. 12.598 in.)
Section (t)
6.00
mm

(Equiv. 0.236 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 320x6 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32000-600-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 - 321x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
321.00
mm

(Equiv. 12.638 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 321x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32100-350-N70 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
General Purpose O-Rings - 321x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Inside Diameter (ID)
321.00
mm

(Equiv. 12.638 in.)
Section (t)
3.50
mm

(Equiv. 0.138 in.)
Colour
Black

Hardness
Duro 70
General Purpose O-Rings - 321x3.5 mm - Black Nitrile Rubber Bulk - Nitrile NBR, BUNA-N O-Ring
Material: Nitrile (NBR, BUNA-N)   
Part Number: ORB-32100-350-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