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-200 Series - 1/8" CS - 0.139" CS

A general purpose, sulfur-cured Buna-N Nitrile O-Ring, the most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. More than 50% of the Orings sold are Buna-N Nitrile Orings, commonly used in hydraulic/pneumatic motors, cylinders, pumps and valves.

Operating temperature: -40° to +250°F




Image Model+ Item Name Stock Price Quantity Discounts
AS568-221 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70221

AS568-221 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1 7/16"ID X 1 11/16"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
3479
$0.07

Add:
Min:  9
Quantity Discounts
9-666$0.07
667-4,285$0.05
4,286+$0.04
AS568-222 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70222

AS568-222 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1 1/2"ID X 1 3/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
457
$0.07

Add:
Min:  8
Quantity Discounts
8-666$0.07
667-4,285$0.05
4,286+$0.04
AS568-223 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70223

AS568-223 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1 5/8"ID X 1 7/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
71
$0.07

Add:
Min:  9
Quantity Discounts
9-666$0.07
667-4,285$0.05
4,286+$0.04
AS568-224 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70224

AS568-224 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1 3/4"ID X 2"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
3590
$0.08

Add:
Min:  8
Quantity Discounts
8-583$0.08
584-3,749$0.06
3,750+$0.04
AS568-225 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70225

AS568-225 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1 7/8"ID X 2 1/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
380
$0.08

Add:
Min:  8
Quantity Discounts
8-583$0.08
584-3,749$0.06
3,750+$0.04
AS568-226 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70226

AS568-226 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2"ID X 2 1/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
1084
$0.08

Add:
Min:  8
Quantity Discounts
8-583$0.08
584-3,749$0.06
3,750+$0.04
AS568-227 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70227

AS568-227 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 1/8"ID X 2 3/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
8142
$0.10

Add:
Min:  6
Quantity Discounts
6-466$0.10
467-2,999$0.08
3,000+$0.05
AS568-228 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70228

AS568-228 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 1/4"ID X 2 1/2"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.10

Add:
Min:  6
Quantity Discounts
6-466$0.10
467-2,999$0.08
3,000+$0.05
AS568-229 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70229

AS568-229 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 3/8"ID X 2 5/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2880
$0.10

Add:
Min:  5
Quantity Discounts
5-466$0.10
467-2,999$0.08
3,000+$0.05
AS568-230 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70230

AS568-230 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 1/2"ID X 2 3/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1289
$0.10

Add:
Min:  5
Quantity Discounts
5-466$0.10
467-2,999$0.08
3,000+$0.05
AS568-231 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70231

AS568-231 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 5/8"ID X 2 7/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
4974
$0.12

Add:
Min:  5
Quantity Discounts
5-388$0.12
389-2,499$0.09
2,500+$0.06
AS568-232 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70232

AS568-232 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 3/4"ID X 3"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
1412
$0.12

Add:
Min:  5
Quantity Discounts
5-388$0.12
389-2,499$0.09
2,500+$0.06
AS568-233 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70233

AS568-233 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2 7/8"ID X 3 1/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
7
$0.12

Add:
Min:  5
Quantity Discounts
5-388$0.12
389-2,499$0.09
2,500+$0.06
AS568-234 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70234

AS568-234 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3"ID X 3 1/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
1833
$0.14

Add:
Min:  4
Quantity Discounts
4-333$0.14
334-2,142$0.11
2,143+$0.07
AS568-235 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70235

AS568-235 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 1/8"ID X 3 3/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3546
$0.14

Add:
Min:  4
Quantity Discounts
4-333$0.14
334-2,142$0.11
2,143+$0.07
AS568-236 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70236

AS568-236 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 1/4"ID X 3 1/2"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
536
$0.14

Add:
Min:  4
Quantity Discounts
4-333$0.14
334-2,142$0.11
2,143+$0.07
AS568-237 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70237

AS568-237 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 3/8"ID X 3 5/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
11
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$0.08
AS568-238 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70238

AS568-238 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 1/2"ID X 3 3/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1710
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$0.08
AS568-239 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70239

AS568-239 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 5/8"ID X 3 7/8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
278
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$0.08
AS568-240 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70240

AS568-240 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 3/4"ID X 4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
483
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$0.08