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-200 Series - 0.139 - 1/8" CS

50 Durometer, Commercial Grade Soft Buna-N

Designed for applications requiring soft O-ring sealing material. Primarily used as a low pressure static seal or gasket. B50 O-rings not in stock may take up to 7 weeks to ship. 6" ID & larger Vulcanized O-Rings available to reduce delivery times and minimum orders. Link to order B50 Vulcanized O-Rings.

Size not listed, special requirements or large quantities please click this link to Request a Price Quote.

 




Image Model+ Item Name Stock Price Quantity Discounts
AS568-261 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50261

AS568-261 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
511
$3.44

Add:

Quantity Discounts
1-135$3.44
136-872$2.58
873+$1.72
AS568-262 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50262

AS568-262 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
84
$3.45

Add:

Quantity Discounts
1-135$3.45
136-869$2.59
870+$1.73
AS568-263 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50263

AS568-263 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
240
$5.77

Add:
Min:  35
Quantity Discounts
35-80$5.77
81-519$4.33
520+$2.89
AS568-264 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50264

AS568-264 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
4
$5.79

Add:

Quantity Discounts
1-80$5.79
81-518$4.34
519+$2.90
AS568-265 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50265

AS568-265 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.98

Add:
Min:  34
Quantity Discounts
34-78$5.98
79-501$4.49
502+$2.99
AS568-266 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50266

AS568-266 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.06

Add:
Min:  34
Quantity Discounts
34-77$6.06
78-495$4.55
496+$3.03
AS568-267 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50267

AS568-267 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.15

Add:
Min:  33
Quantity Discounts
33-75$6.15
76-487$4.61
488+$3.08
AS568-268 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50268

AS568-268 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.17

Add:
Min:  33
Quantity Discounts
33-75$6.17
76-486$4.63
487+$3.09
AS568-269 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50269

AS568-269 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.20

Add:
Min:  33
Quantity Discounts
33-75$6.20
76-483$4.65
484+$3.10
AS568-270 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50270

AS568-270 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.24

Add:
Min:  33
Quantity Discounts
33-74$6.24
75-480$4.68
481+$3.12
AS568-271 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50271

AS568-271 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.28

Add:
Min:  32
Quantity Discounts
32-74$6.28
75-477$4.71
478+$3.14
AS568-272 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50272

AS568-272 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.32

Add:
Min:  32
Quantity Discounts
32-73$6.32
74-474$4.74
475+$3.16
AS568-273 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50273

AS568-273 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.36

Add:
Min:  32
Quantity Discounts
32-73$6.36
74-471$4.77
472+$3.18
AS568-274 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50274

AS568-274 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
72
$6.44

Add:

Quantity Discounts
1-72$6.44
73-465$4.83
466+$3.22
AS568-275 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50275

AS568-275 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$6.60

Add:
Min:  31
Quantity Discounts
31-70$6.60
71-454$4.95
455+$3.30
AS568-276 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50276

AS568-276 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
57
$10.72

Add:

Quantity Discounts
1-43$10.72
44-279$8.04
280+$5.36
AS568-277 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50277

AS568-277 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
58
$12.16

Add:

Quantity Discounts
1-38$12.16
39-246$9.12
247+$6.08
AS568-278 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50278

AS568-278 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$30.19

Add:
Min:  7
Quantity Discounts
7-15$30.19
16-99$22.64
100+$15.10
AS568-279 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50279

AS568-279 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
31
$12.22

Add:

Quantity Discounts
1-38$12.22
39-245$9.17
246+$6.11
AS568-280 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50280

AS568-280 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$31.44

Add:
Min:  7
Quantity Discounts
7-14$31.44
15-95$23.58
96+$15.72