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Buna-N 90 Boss O-rings




Image Model+ Item Name Stock Price Quantity Discounts
-901 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90901

-901 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 3/32" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
8772
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-902 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -2) B90902

-902 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -2)

Tube Size OD: 1/8", , SAE Dash Size -2, Thread Size 5/16-24 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
7482
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-903 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -3) B90903

-903 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -3)

Tube Size OD: 3/16", SAE Dash Size -3, Thread Size 3/8-24 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
7400
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-904 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -4) B90904

-904 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -4)

Tube Size OD: 1/4", SAE Dash Size -4, Thread Size 7/16-20 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
79910
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-905 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -5) B90905

-905 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -5)

Tube Size OD: 5/16", SAE Dash Size -5, Thread Size 1/2-20 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
2830
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-906 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -6) B90906

-906 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -6)

Tube Size OD: 3/8", SAE Dash Size -6, Thread Size 9/16-18 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
1631
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-907 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90907

-907 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 7/16" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
2807
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-908 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -8) B90908

-908 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -8)

Tube Size OD: 1/2", SAE Dash Size -8, Thread Size 3/4"-16 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
34927
$0.04

Add:
Min:  13
Quantity Discounts
13-1,166$0.04
1,167-7,499$0.03
7,500+$0.02
-909 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90909

-909 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 9/16" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
1562
$0.05

Add:
Min:  10
Quantity Discounts
10-933$0.05
934-5,999$0.04
6,000+$0.03
-910 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -10) B90910

-910 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -10)

Tube Size OD: 5/8", SAE Dash Size -10, Thread Size 7/8-14 UNF Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
29610
$0.05

Add:
Min:  10
Quantity Discounts
10-933$0.05
934-5,999$0.04
6,000+$0.03
-911 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90911

-911 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 11/16" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
1459
$0.06

Add:
Min:  9
Quantity Discounts
9-777$0.06
778-4,999$0.05
5,000+$0.03
-912 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -12) B90912

-912 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -12)

Tube Size OD: 3/4", SAE Dash Size -12, Thread Size 1-1/16-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
1569
$0.06

Add:
Min:  9
Quantity Discounts
9-777$0.06
778-4,999$0.05
5,000+$0.03
-913 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90913

-913 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 13/16" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
1610
$0.07

Add:
Min:  8
Quantity Discounts
8-666$0.07
667-4,285$0.05
4,286+$0.04
-914 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -14) B90914

-914 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -14)

Tube Size OD: 7/8", SAE Dash Size -14, Thread Size 1-3/16-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
1290
$0.08

Add:
Min:  7
Quantity Discounts
7-583$0.08
584-3,749$0.06
3,750+$0.04
-916 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -16) B90916

-916 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -16)

Tube Size OD: 1", SAE Dash Size -16, Thread Size 1-5/16-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
554
$0.09

Add:
Min:  6
Quantity Discounts
6-518$0.09
519-3,333$0.07
3,334+$0.05
-918 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90918

-918 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 1 1/8" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
13898
$0.10

Add:
Min:  5
Quantity Discounts
5-466$0.10
467-2,999$0.08
3,000+$0.05
-920 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -20) B90920

-920 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -20)

Tube Size OD: 1-1/4", SAE Dash Size -20, Thread Size 1-5/8-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
2794
$0.11

Add:
Min:  5
Quantity Discounts
5-424$0.11
425-2,727$0.08
2,728+$0.06
-924 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -24) B90924

-924 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -24)

Tube Size OD: 1-1/2", SAE Dash Size -24, Thread Size 1-7/8-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
1269
$0.12

Add:
Min:  5
Quantity Discounts
5-388$0.12
389-2,499$0.09
2,500+$0.06
-928 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90928

-928 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring

Tube Size OD: 1 3/4" Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications. Nitrile is also known as Buna-N or NBR, is a...
421
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$0.08
-932 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -32) B90932

-932 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -32)

Tube Size OD: 2", SAE Dash Size -32, Thread Size 2-1/2-12 UN Buna-N O-Rings 90 Duro: exceptionally suited for high pressure applications....
935
$0.18

Add:
Min:  3
Quantity Discounts
3-259$0.18
260-1,666$0.14
1,667+$0.09


What are the most common O-ring compounds?

We stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Buna-N O-Rings / Nitrile O-Rings / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.
AS-568 Buna-N O-Rings | Metric Buna-N O-Rings

Viton® O-Rings / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.
AS-568 Viton® O-Rings | Metric Viton® O-Rings

Ethylene-Propylene / EPDM O-Rings: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.
AS-568 EPDM O-Rings | Metric EPDM O-Rings

Silicone O-Rings / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.
AS-568 Silicone O-Rings | Metric Silicone O-Rings

Neoprene® O-Rings / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.
AS-568 Neoprene® O-Rings