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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
AS568-241 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50241

AS568-241 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-7/8"ID X 4-1/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1
$1.76

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Quantity Discounts
1-265$1.76
266-1,704$1.32
1,705+$0.88
AS568-242 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50242

AS568-242 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4"ID X 4-1/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$1.77

Add:
Min:  113
Quantity Discounts
113-263$1.77
264-1,694$1.33
1,695+$0.89
AS568-243 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50243

AS568-243 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-1/8"ID X 4-3/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
24
$1.79

Add:

Quantity Discounts
1-260$1.79
261-1,675$1.34
1,676+$0.90
AS568-244 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50244

AS568-244 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-1/4"ID X 4-1/2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.84

Add:
Min:  109
Quantity Discounts
109-253$1.84
254-1,630$1.38
1,631+$0.92
AS568-245 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50245

AS568-245 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-3/8"ID X 4-5/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.87

Add:
Min:  107
Quantity Discounts
107-249$1.87
250-1,604$1.40
1,605+$0.94
AS568-246 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50246

AS568-246 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...
50
$1.90

Add:

Quantity Discounts
1-245$1.90
246-1,578$1.43
1,579+$0.95
AS568-247 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50247

AS568-247 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-5/8"ID X 4-7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.92

Add:
Min:  105
Quantity Discounts
105-243$1.92
244-1,562$1.44
1,563+$0.96
AS568-248 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50248

AS568-248 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-3/4"ID X 5"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$1.94

Add:
Min:  104
Quantity Discounts
104-57$1.94
58-370$1.46
371+$0.97
AS568-249 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50249

AS568-249 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-7/8"ID X 5-1/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1889
$1.95

Add:

Quantity Discounts
1-239$1.95
240-1,538$1.46
1,539+$0.98
AS568-250 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50250

AS568-250 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5"ID X 5-1/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
833
$2.02

Add:

Quantity Discounts
1-231$2.02
232-1,485$1.52
1,486+$1.01
AS568-251 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50251

AS568-251 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
$2.77

Add:
Min:  73
Quantity Discounts
73-168$2.77
169-1,083$2.08
1,084+$1.39
AS568-252 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50252

AS568-252 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...
70
$2.78

Add:

Quantity Discounts
1-167$2.78
168-1,079$2.09
1,080+$1.39
AS568-253 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50253

AS568-253 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...
129
$2.79

Add:

Quantity Discounts
1-167$2.79
168-1,075$2.09
1,076+$1.40
AS568-254 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50254

AS568-254 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...
823
$2.81

Add:

Quantity Discounts
1-166$2.81
167-1,067$2.11
1,068+$1.41
AS568-255 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50255

AS568-255 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...
181
$2.83

Add:

Quantity Discounts
1-164$2.83
165-1,060$2.12
1,061+$1.42
AS568-256 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50256

AS568-256 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...
258
$2.84

Add:

Quantity Discounts
1-164$2.84
165-1,056$2.13
1,057+$1.42
AS568-257 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50257

AS568-257 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
$2.92

Add:
Min:  69
Quantity Discounts
69-159$2.92
160-1,027$2.19
1,028+$1.46
AS568-258 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50258

AS568-258 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...
-5
$2.94

Add:
Min:  69
Quantity Discounts
69-158$2.94
159-1,020$2.21
1,021+$1.47
AS568-259 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50259

AS568-259 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...
124
$3.06

Add:

Quantity Discounts
1-152$3.06
153-980$2.30
981+$1.53
AS568-260 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50260

AS568-260 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
$3.37

Add:
Min:  60
Quantity Discounts
60-138$3.37
139-890$2.53
891+$1.69