-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.

Recommended by the NFPA for optimal leakage control in medium and high pressure hydraulic systems. The male fitting has a straight thread and O-ring. The female port has a straight thread, a machined surface (minimum spotface) and a chamfer to accept the O-ring. The seal take place by compressing the O-ring in the chamfer. The threads hold the connection mechanically. This fitting is also known as O-Ring Boss (ORB) and uses these Boss O-Rings.

Displaying 1 to 20 (of 20 Products)
  Model Item Name Qty. Price Quantity Discounts
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...
 9089 $0.055
Add:
Min Qty:  25
Quantity Discounts
25-999$0.055
1,000-4,999$0.019
5,000+$0.015
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....
 54980 $0.055
Add:
Min Qty:  25
Quantity Discounts
25-999$0.055
1,000-4,999$0.019
5,000+$0.015
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....
 68380 $0.055
Add:
Min Qty:  25
Quantity Discounts
25-999$0.055
1,000-4,999$0.019
5,000+$0.015
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....
 186206 $0.057
Add:
Min Qty:  25
Quantity Discounts
25-999$0.057
1,000-4,999$0.020
5,000+$0.016
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....
 60758 $0.064
Add:
Min Qty:  25
Quantity Discounts
25-999$0.064
1,000-4,999$0.022
5,000+$0.017
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....
 54084 $0.070
Add:
Min Qty:  25
Quantity Discounts
25-999$0.070
1,000-4,999$0.024
5,000+$0.019
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...
 45953 $0.081
Add:
Min Qty:  25
Quantity Discounts
25-999$0.081
1,000-4,999$0.028
5,000+$0.022
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....
 32559 $0.096
Add:
Min Qty:  25
Quantity Discounts
25-999$0.096
1,000-4,999$0.033
5,000+$0.026
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...
 22141 $0.125
Add:
Min Qty:  25
Quantity Discounts
25-999$0.125
1,000-4,999$0.043
5,000+$0.034
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....
 38517 $0.139
Add:
Min Qty:  25
Quantity Discounts
25-999$0.139
1,000-4,999$0.048
5,000+$0.038
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...
 13178 $0.206
Add:
Min Qty:  25
Quantity Discounts
25-999$0.206
1,000-4,999$0.071
5,000+$0.056
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....
 17161 $0.214
Add:
Min Qty:  6
Quantity Discounts
6-239$0.214
240-1,199$0.074
1,200+$0.058
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...
 12442 $0.241
Add:
Min Qty:  6
Quantity Discounts
6-239$0.241
240-1,199$0.083
1,200+$0.065
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....
 8532 $0.261
Add:
Min Qty:  6
Quantity Discounts
6-239$0.261
240-1,199$0.090
1,200+$0.070
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....
 9009 $0.287
Add:
Min Qty:  5
Quantity Discounts
5-199$0.287
200-999$0.099
1,000+$0.078
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...
 12179 $0.330
Add:
Min Qty:  4
Quantity Discounts
4-159$0.330
160-799$0.114
800+$0.089
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....
 22903 $0.368
Add:
Min Qty:  4
Quantity Discounts
4-159$0.368
160-799$0.127
800+$0.099
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....
 4128 $0.426
Add:
Min Qty:  4
Quantity Discounts
4-159$0.426
160-799$0.146
800+$0.115
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...
 8350 $0.589
Add:
Min Qty:  3
Quantity Discounts
3-119$0.589
120-599$0.202
600+$0.159
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....
 1726 $0.640
Add:
Min Qty:  3
Quantity Discounts
3-119$0.640
120-599$0.220
600+$0.172
Displaying 1 to 20 (of 20 Products)
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1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719