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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 Qty. Price Quantity Discounts
-241 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70241

-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...
1521
$0.18

Add:
Min:  3
Quantity Discounts
3-199$0.18
200-1,249$0.14
1,250+$0.09
-242 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70242

-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...
681
$0.20

Add:
Min:  3
Quantity Discounts
3-174$0.20
175-999$0.15
1,000+$0.10
-243 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70243

-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...
284
$0.20

Add:
Min:  3
Quantity Discounts
3-174$0.20
175-999$0.15
1,000+$0.10
-244 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70244

-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...
55
$0.20

Add:
Min:  3
Quantity Discounts
3-174$0.20
175-999$0.15
1,000+$0.10
-245 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70245

-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...
218
$0.22

Add:
Min:  3
Quantity Discounts
3-149$0.22
150-999$0.17
1,000+$0.11
-246 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70246

-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...
797
$0.22

Add:
Min:  3
Quantity Discounts
3-149$0.22
150-999$0.17
1,000+$0.11
-247 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70247

-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...
56
$0.24

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

-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...
126
$0.31

Add:
Min:  2
Quantity Discounts
2-108$0.31
109-624$0.23
625+$0.16
-249 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70249

-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...
19387
$0.32

Add:
Min:  2
Quantity Discounts
2-124$0.32
125-999$0.24
1,000+$0.16
-250 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70250

-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...
148
$0.36

Add:
Min:  2
Quantity Discounts
2-92$0.36
93-555$0.27
556+$0.18
-251 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70251

-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...
64
$0.37

Add:
Min:  2
Quantity Discounts
2-124$0.37
125-999$0.28
1,000+$0.19
-252 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70252

-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...
882
$0.38

Add:
Min:  2
Quantity Discounts
2-86$0.38
87-526$0.29
527+$0.19
-253 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70253

-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...
166
$0.39

Add:
Min:  2
Quantity Discounts
2-124$0.39
125-999$0.29
1,000+$0.20
-254 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70254

-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...
149
$0.40

Add:
Min:  2
Quantity Discounts
2-124$0.40
125-999$0.30
1,000+$0.20
-255 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70255

-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...
0
$0.42

Add:
Min:  3
Quantity Discounts
3-124$0.42
125-999$0.32
1,000+$0.21
-256 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70256

-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...
487
$0.43

Add:
Min:  2
Quantity Discounts
2-124$0.43
125-999$0.32
1,000+$0.22
-257 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70257

-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...
129
$0.44

Add:
Min:  2
Quantity Discounts
2-75$0.44
76-454$0.33
455+$0.22
-258 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70258

-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...
37
$0.48

Add:
Min:  2
Quantity Discounts
2-99$0.48
100-749$0.36
750+$0.24
-259 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70259

-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...
259
$0.50

Add:
Min:  2
Quantity Discounts
2-124$0.50
125-749$0.38
750+$0.25
-260 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70260

-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...
0
$0.53

Add:
Min:  2
Quantity Discounts
2-124$0.53
125-749$0.40
750+$0.27