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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
AS568-261 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70261

AS568-261 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 3/4"ID X 7"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
173
$0.55

Add:
Min:  2
Quantity Discounts
2-84$0.55
85-545$0.41
546+$0.28
AS568-262 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70262

AS568-262 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7"ID X 7 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...
871
$0.57

Add:
Min:  2
Quantity Discounts
2-81$0.57
82-526$0.43
527+$0.29
AS568-263 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70263

AS568-263 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 1/4"ID X 7 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...
86
$0.60

Add:
Min:  2
Quantity Discounts
2-77$0.60
78-499$0.45
500+$0.30
AS568-264 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70264

AS568-264 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 1/2"ID X 7 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...
438
$0.64

Add:
Min:  2
Quantity Discounts
2-72$0.64
73-468$0.48
469+$0.32
AS568-265 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70265

AS568-265 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 3/4"ID X 8"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
678
$0.67

Add:
Min:  2
Quantity Discounts
2-69$0.67
70-447$0.50
448+$0.34
AS568-266 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70266

AS568-266 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8"ID X 8 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...
76
$0.70

Add:
Min:  2
Quantity Discounts
2-66$0.70
67-428$0.53
429+$0.35
AS568-267 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70267

AS568-267 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8 1/4"ID X 8 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...
535
$0.73

Add:
Min:  2
Quantity Discounts
2-63$0.73
64-410$0.55
411+$0.37
AS568-268 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70268

AS568-268 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8 1/2"ID X 8 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...
31
$0.77

Add:

Quantity Discounts
1-60$0.77
61-389$0.58
390+$0.39
AS568-269 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70269

AS568-269 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8 3/4"ID X 9"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
510
$0.80

Add:

Quantity Discounts
1-58$0.80
59-374$0.60
375+$0.40
AS568-270 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70270

AS568-270 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9"ID X 9 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...
47
$0.83

Add:

Quantity Discounts
1-56$0.83
57-361$0.62
362+$0.42
AS568-271 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70271

AS568-271 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9 1/4"ID X 9 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...
187
$0.92

Add:

Quantity Discounts
1-50$0.92
51-326$0.69
327+$0.46
AS568-272 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70272

AS568-272 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9 1/2"ID X 9 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...
972
$1.00

Add:

Quantity Discounts
1-46$1.00
47-299$0.75
300+$0.50
AS568-273 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70273

AS568-273 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9 3/4"ID X 10"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
83
$1.09

Add:

Quantity Discounts
1-42$1.09
43-275$0.82
276+$0.55
AS568-274 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70274

AS568-274 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

10"ID X 10 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...
19
$1.17

Add:

Quantity Discounts
1-39$1.17
40-256$0.88
257+$0.59
AS568-275 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70275

AS568-275 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

10 1/2"ID X 10 3/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
83
$1.25

Add:

Quantity Discounts
1-37$1.25
38-239$0.94
240+$0.63
AS568-276 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70276

AS568-276 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

11"ID X 11 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...
292
$1.34

Add:

Quantity Discounts
1-34$1.34
35-223$1.01
224+$0.67
AS568-277 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70277

AS568-277 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

11 1/2"ID X 11 3/4"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
424
$1.42

Add:

Quantity Discounts
1-32$1.42
33-211$1.07
212+$0.71
AS568-278 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70278

AS568-278 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

12"ID X 12 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...
410
$1.50

Add:

Quantity Discounts
1-31$1.50
32-199$1.13
200+$0.75
AS568-279 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70279

AS568-279 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

13"ID X 13 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...
278
$1.59

Add:

Quantity Discounts
1-29$1.59
30-188$1.19
189+$0.80
AS568-280 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70280

AS568-280 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

14"ID X 14 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...
43
$1.67

Add:

Quantity Discounts
1-27$1.67
28-179$1.25
180+$0.84