Buna-N (NBR) 90 Duro SAE Boss O-Rings | Hydraulic ORB Seals

Buna-N (NBR) 90 durometer Boss O-Rings are built for high-pressure hydraulic sealing where standard 70 durometer O-Rings may fail. These O-Rings are commonly used in SAE straight thread O-Ring Boss (ORB) fittings, providing a tighter, more extrusion-resistant seal under pressure and vibration. With increased hardness, they handle demanding applications like hydraulic systems, heavy equipment, and industrial fluid transfer with greater reliability. For customers, this means fewer leaks, longer service life, and less downtime in critical systems. At The O-Ring Store LLC, we stock a wide range of AS568 Boss sizes in 90 durometer Buna-N, ensuring consistent quality, fast shipping, and dependable performance you can count on when sealing matters most.

 

Displaying 1 to 20 (of 20 Products)
Product Image Model Product Name Qty. Price Quantity Discounts
(image for) AS568-901 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90901

AS568-901 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 23080
$0.050
Add:
Min Qty:  100
Quantity Discounts
100-999$0.050
1,000-19,199$0.019
19,200-99,999$0.013
100,000+$0.010
(image for) AS568-902 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -2) B90902

AS568-902 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 37983
$0.050
Add:
Min Qty:  100
Quantity Discounts
100-999$0.050
1,000-19,199$0.019
19,200-99,999$0.013
100,000+$0.010
(image for) AS568-903 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -3) B90903

AS568-903 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 67852
$0.050
Add:
Min Qty:  100
Quantity Discounts
100-999$0.050
1,000-19,199$0.019
19,200-99,999$0.013
100,000+$0.010
(image for) AS568-904 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -4) B90904

AS568-904 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 47562
$0.050
Add:
Min Qty:  100
Quantity Discounts
100-999$0.050
1,000-19,199$0.019
19,200-99,999$0.013
100,000+$0.010
(image for) AS568-905 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -5) B90905

AS568-905 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 36305
$0.050
Add:
Min Qty:  100
Quantity Discounts
100-999$0.050
1,000-19,199$0.019
19,200-99,999$0.013
100,000+$0.010
(image for) AS568-906 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -6) B90906

AS568-906 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 Get a reliable seal for SAE straight thread boss fittings with the AS568-906 B90 Buna-N Nitrile 90 Duro O-Ring. This black 90 durometer NBR O-Ring is made for SAE -6 boss applications, helping prevent leaks in hydraulic fittings, tube connections, and equipment where oil resistance, firm sealing force, and dependable fit matter. This O-Ring is a strong choice for maintenance teams,...
In Stock: 24853
$0.090
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Min Qty:  50
Quantity Discounts
50-999$0.090
1,000-9,999$0.036
10,000-49,999$0.025
50,000+$0.020
(image for) AS568-907 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90907

AS568-907 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 13288
$0.090
Add:
Min Qty:  50
Quantity Discounts
50-999$0.090
1,000-9,999$0.036
10,000-49,999$0.025
50,000+$0.020
(image for) AS568-908 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -8) B90908

AS568-908 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 36503
$0.090
Add:
Min Qty:  50
Quantity Discounts
50-999$0.090
1,000-9,999$0.036
10,000-49,999$0.025
50,000+$0.020
(image for) AS568-909 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90909

AS568-909 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 5254
$0.140
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Min Qty:  50
Quantity Discounts
50-999$0.140
1,000-6,599$0.055
6,600-32,999$0.038
33,000+$0.030
(image for) AS568-910 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -10) B90910

AS568-910 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 29529
$0.140
Add:
Min Qty:  50
Quantity Discounts
50-999$0.140
1,000-6,599$0.055
6,600-32,999$0.038
33,000+$0.030
(image for) AS568-911 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90911

AS568-911 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 3060
$0.180
Add:
Min Qty:  25
Quantity Discounts
25-499$0.180
500-4,999$0.072
5,000-24,999$0.050
25,000+$0.040
(image for) AS568-912 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -12) B90912

AS568-912 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 30527
$0.180
Add:
Min Qty:  25
Quantity Discounts
25-499$0.180
500-4,999$0.072
5,000-24,999$0.050
25,000+$0.040
(image for) AS568-913 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90913

AS568-913 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 3168
$0.230
Add:
Min Qty:  25
Quantity Discounts
25-499$0.230
500-3,999$0.090
4,000-19,999$0.063
20,000+$0.050
(image for) AS568-914 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -14) B90914

AS568-914 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 19179
$0.230
Add:
Min Qty:  25
Quantity Discounts
25-499$0.230
500-3,999$0.090
4,000-19,999$0.063
20,000+$0.050
(image for) AS568-916 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -16) B90916

AS568-916 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 13661
$0.230
Add:
Min Qty:  25
Quantity Discounts
25-499$0.230
500-3,999$0.090
4,000-19,999$0.063
20,000+$0.050
(image for) AS568-918 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90918

AS568-918 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 7649
$0.270
Add:
Min Qty:  25
Quantity Discounts
25-499$0.270
500-3,299$0.108
3,300-16,999$0.075
17,000+$0.060
(image for) AS568-920 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -20) B90920

AS568-920 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 15275
$0.320
Add:
Min Qty:  15
Quantity Discounts
15-499$0.320
500-2,799$0.126
2,800-13,999$0.088
14,000+$0.070
(image for) AS568-924 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -24) B90924

AS568-924 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 791
$0.360
Add:
Min Qty:  15
Quantity Discounts
15-249$0.360
250-2,499$0.143
2,500-12,999$0.100
13,000+$0.080
(image for) AS568-928 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring B90928

AS568-928 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 copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit excellent tensile strength and abrasion...
In Stock: 4569
$0.410
Add:
Min Qty:  10
Quantity Discounts
10-249$0.410
250-2,199$0.162
2,200-10,999$0.113
11,000+$0.090
(image for) AS568-932 B90 (NBR) Buna-N Nitrile 90 Duro O-Ring (SAE -32) B90932

AS568-932 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. Nitrile is also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It is the most commonly used elastomer for sealing products. It has a temperature range of -40F to +250F and is exceptionally resistant to petroleum base oils and hydrocarbon fuels. Nitrile materials also exhibit...
In Stock: 1274
$0.450
Add:
Min Qty:  10
Quantity Discounts
10-249$0.450
250-1,999$0.179
2,000-9,999$0.125
10,000+$0.100
Displaying 1 to 20 (of 20 Products)