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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
AS568-241 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70241

AS568-241 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3 7/8"ID X 4 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...
867
$0.18

Add:
Min:  3
Quantity Discounts
3-259$0.18
260-1,666$0.14
1,667+$0.09
AS568-242 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70242

AS568-242 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4"ID X 4 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...
876
$0.20

Add:
Min:  3
Quantity Discounts
3-233$0.20
234-1,499$0.15
1,500+$0.10
AS568-243 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70243

AS568-243 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 1/8"ID X 4 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...
176
$0.20

Add:
Min:  3
Quantity Discounts
3-233$0.20
234-1,499$0.15
1,500+$0.10
AS568-244 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70244

AS568-244 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 1/4"ID X 4 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...
27
$0.20

Add:
Min:  3
Quantity Discounts
3-233$0.20
234-1,499$0.15
1,500+$0.10
AS568-245 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70245

AS568-245 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 3/8"ID X 4 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...
1533
$0.22

Add:
Min:  3
Quantity Discounts
3-212$0.22
213-1,363$0.17
1,364+$0.11
AS568-246 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70246

AS568-246 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 1/2"ID X 4 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...
391
$0.22

Add:
Min:  3
Quantity Discounts
3-212$0.22
213-1,363$0.17
1,364+$0.11
AS568-247 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70247

AS568-247 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 5/8"ID X 4 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...
2953
$0.24

Add:
Min:  3
Quantity Discounts
3-194$0.24
195-1,249$0.18
1,250+$0.12
AS568-248 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70248

AS568-248 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 3/4"ID X 5"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
4
$0.31

Add:
Min:  2
Quantity Discounts
2-150$0.31
151-967$0.23
968+$0.16
AS568-249 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70249

AS568-249 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 7/8"ID X 5 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...
16655
$0.32

Add:
Min:  2
Quantity Discounts
2-145$0.32
146-937$0.24
938+$0.16
AS568-250 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70250

AS568-250 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5"ID X 5 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...
864
$0.36

Add:
Min:  2
Quantity Discounts
2-129$0.36
130-833$0.27
834+$0.18
AS568-251 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70251

AS568-251 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/8"ID X 5 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...
1283
$0.37

Add:
Min:  2
Quantity Discounts
2-126$0.37
127-810$0.28
811+$0.19
AS568-252 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70252

AS568-252 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/4"ID X 5 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...
906
$0.38

Add:
Min:  2
Quantity Discounts
2-122$0.38
123-789$0.29
790+$0.19
AS568-253 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70253

AS568-253 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 3/8"ID X 5 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...
1098
$0.39

Add:
Min:  2
Quantity Discounts
2-119$0.39
120-769$0.29
770+$0.20
AS568-254 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70254

AS568-254 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/2"ID X 5 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...
49
$0.40

Add:
Min:  2
Quantity Discounts
2-116$0.40
117-749$0.30
750+$0.20
AS568-255 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70255

AS568-255 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 5/8"ID X 5 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...
188
$0.42

Add:
Min:  3
Quantity Discounts
3-111$0.42
112-714$0.32
715+$0.21
AS568-256 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70256

AS568-256 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 3/4"ID X 6"OD X 1/8"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
1397
$0.43

Add:
Min:  2
Quantity Discounts
2-108$0.43
109-697$0.32
698+$0.22
AS568-257 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70257

AS568-257 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 7/8"ID X 6 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...
146
$0.44

Add:
Min:  2
Quantity Discounts
2-106$0.44
107-681$0.33
682+$0.22
AS568-258 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70258

AS568-258 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6"ID X 6 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...
90
$0.48

Add:
Min:  2
Quantity Discounts
2-97$0.48
98-624$0.36
625+$0.24
AS568-259 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70259

AS568-259 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 1/4"ID X 6 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...
146
$0.50

Add:
Min:  2
Quantity Discounts
2-93$0.50
94-599$0.38
600+$0.25
AS568-260 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70260

AS568-260 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 1/2"ID X 6 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...
853
$0.53

Add:
Min:  2
Quantity Discounts
2-88$0.53
89-566$0.40
567+$0.27