-900 Series - Boss

Oil-Resistant Hard Buna-N O-Rings for Tube Fittings with SAE Straight-Thread Connection

SAE J1926-1

Also known as Boss O-rings, these are for use in tube fittings with a straight-thread connection. They are made of hard Buna-N, which is resilient and offers excellent resistance to wear, grease, petroleum fluids, and motor oil. These O-rings have a round profile and are suitable for a wide range of static and dynamic sealing applications. They're sized to the SAE standard AS568.

SAE O-Ring Boss, also called ORB, is a straight-thread hydraulic fitting standard where the threads hold the fitting in place and a rubber O-Ring creates the seal against a flat machined surface in the port. This design provides a reliable, leak-free seal at high pressure without pipe tape or sealant and is widely used in hydraulic hoses, pumps, valves, and repair applications.

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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 24470
$0.045
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Min Qty:  100
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100-999$0.045
1,000-4,999$0.018
5,000-49,999$0.012
50,000+$0.009
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 78873
$0.038
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Min Qty:  100
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100-999$0.038
1,000-49,999$0.015
50,000-499,999$0.010
500,000+$0.008
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 72097
$0.038
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Min Qty:  100
Quantity Discounts
100-999$0.038
1,000-49,999$0.015
50,000-499,999$0.010
500,000+$0.008
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 106495
$0.045
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Min Qty:  100
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100-999$0.045
1,000-49,999$0.018
50,000-499,999$0.012
500,000+$0.009
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 69651
$0.048
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Min Qty:  50
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50-999$0.048
1,000-49,999$0.019
50,000-499,999$0.013
500,000+$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 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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 64234
$0.055
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Min Qty:  50
Quantity Discounts
50-999$0.055
1,000-49,999$0.022
50,000-499,999$0.015
500,000+$0.012
(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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 18599
$0.070
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Min Qty:  50
Quantity Discounts
50-999$0.070
1,000-49,999$0.028
50,000-499,999$0.019
500,000+$0.015
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 3149
$0.090
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Min Qty:  25
Quantity Discounts
25-999$0.090
1,000-49,999$0.036
50,000-499,999$0.025
500,000+$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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 5170
$0.108
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Min Qty:  25
Quantity Discounts
25-999$0.108
1,000-49,999$0.043
50,000-499,999$0.030
500,000+$0.024
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 17302
$0.115
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Min Qty:  25
Quantity Discounts
25-999$0.115
1,000-49,999$0.046
50,000-499,999$0.032
500,000+$0.025
(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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 4365
$0.175
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Min Qty:  25
Quantity Discounts
25-999$0.175
1,000-49,999$0.070
50,000-499,999$0.049
500,000+$0.039
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 4511
$0.175
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Min Qty:  25
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25-499$0.175
500-24,999$0.070
25,000-249,999$0.049
250,000+$0.039
(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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 4498
$0.190
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Min Qty:  15
Quantity Discounts
15-299$0.190
300-14,999$0.076
15,000-149,999$0.053
150,000+$0.042
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 17028
$0.198
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Min Qty:  15
Quantity Discounts
15-299$0.198
300-14,999$0.079
15,000-149,999$0.055
150,000+$0.044
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 13671
$0.215
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Min Qty:  10
Quantity Discounts
10-299$0.215
300-14,999$0.086
15,000-149,999$0.060
150,000+$0.048
(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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 7499
$0.250
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Min Qty:  10
Quantity Discounts
10-299$0.250
300-14,999$0.100
15,000-149,999$0.070
150,000+$0.056
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 11858
$0.288
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Min Qty:  10
Quantity Discounts
10-199$0.288
200-9,999$0.115
10,000-99,999$0.080
100,000+$0.064
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in...
 In Stock: 4255
$0.323
Add:
Min Qty:  10
Quantity Discounts
10-199$0.323
200-9,999$0.129
10,000-99,999$0.090
100,000+$0.072
(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 resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water applications. It is not recommended for...
 In Stock: 4326
$0.375
Add:
Min Qty:  5
Quantity Discounts
5-199$0.375
200-9,999$0.150
10,000-99,999$0.105
100,000+$0.084
(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 excellent tensile strength and abrasion resistance properties. The material performs well with most dilute acids, silicone oils and lubricants and in water...
 In Stock: 2297
$0.438
Add:
Min Qty:  5
Quantity Discounts
5-199$0.438
200-9,999$0.175
10,000-99,999$0.122
100,000+$0.097
Displaying 1 to 20 (of 20 Products)