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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
AS568-221 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50221

AS568-221 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-7/16"ID X 1-11/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
6414
$0.46

Add:
Min:  2
Quantity Discounts
2-101$0.46
102-652$0.35
653+$0.23
AS568-222 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50222

AS568-222 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/2"ID X 1-3/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3065
$0.49

Add:
Min:  2
Quantity Discounts
2-95$0.49
96-612$0.37
613+$0.25
AS568-223 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50223

AS568-223 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-5/8"ID X 1-7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2594
$0.55

Add:

Quantity Discounts
1-84$0.55
85-545$0.41
546+$0.28
AS568-224 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50224

AS568-224 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-3/4"ID X 2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
4525
$0.62

Add:

Quantity Discounts
1-75$0.62
76-483$0.47
484+$0.31
AS568-225 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50225

AS568-225 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-7/8"ID X 2-1/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3872
$0.66

Add:

Quantity Discounts
1-70$0.66
71-454$0.50
455+$0.33
AS568-226 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50226

AS568-226 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2"ID X 2-1/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
134
$0.73

Add:

Quantity Discounts
1-63$0.73
64-410$0.55
411+$0.37
AS568-227 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50227

AS568-227 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-1/8"ID X 2-3/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
45
$0.76

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Quantity Discounts
1-61$0.76
62-394$0.57
395+$0.38
AS568-228 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50228

AS568-228 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-1/4"ID X 2-1/2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
394
$0.88

Add:

Quantity Discounts
1-53$0.88
54-340$0.66
341+$0.44
AS568-229 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50229

AS568-229 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-3/8"ID X 2-5/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.89

Add:

Quantity Discounts
1-52$0.89
53-337$0.67
338+$0.45
AS568-230 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50230

AS568-230 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-1/2"ID X 2-3/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1408
$1.01

Add:

Quantity Discounts
1-46$1.01
47-297$0.76
298+$0.51
AS568-231 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50231

AS568-231 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-5/8"ID X 2-7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
27
$1.05

Add:

Quantity Discounts
1-44$1.05
45-285$0.79
286+$0.53
AS568-232 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50232

AS568-232 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-3/4"ID X 3"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
7
$1.08

Add:

Quantity Discounts
1-43$1.08
44-277$0.81
278+$0.54
AS568-233 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50233

AS568-233 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...
1375
$1.24

Add:

Quantity Discounts
1-37$1.24
38-241$0.93
242+$0.62
AS568-234 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50234

AS568-234 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3"ID X 3-1/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
52
$1.28

Add:

Quantity Discounts
1-36$1.28
37-234$0.96
235+$0.64
AS568-235 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50235

AS568-235 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-1/8"ID X 3-3/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.32

Add:
Min:  152
Quantity Discounts
152-35$1.32
36-227$0.99
228+$0.66
AS568-236 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50236

AS568-236 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-1/4"ID X 3-1/2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.35

Add:
Min:  149
Quantity Discounts
149-34$1.35
35-222$1.01
223+$0.68
AS568-237 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50237

AS568-237 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-3/8"ID X 3-5/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.37

Add:
Min:  146
Quantity Discounts
146-340$1.37
341-2,189$1.03
2,190+$0.69
AS568-238 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50238

AS568-238 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-1/2"ID X 3-3/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
254
$1.38

Add:

Quantity Discounts
1-338$1.38
339-2,173$1.04
2,174+$0.69
AS568-239 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50239

AS568-239 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-5/8"ID X 3-7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3
$1.41

Add:

Quantity Discounts
1-330$1.41
331-2,127$1.06
2,128+$0.71
AS568-240 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50240

AS568-240 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3-3/4"ID X 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...
31
$1.74

Add:

Quantity Discounts
1-268$1.74
269-1,724$1.31
1,725+$0.87