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-300 Series - 3/16" CS - 0.210" 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
-329 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70329

-329 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2"ID X 2-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
403
$0.20

Add:
Min:  4
Quantity Discounts
4-169$0.20
170-999$0.15
1,000+$0.10
-330 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70330

-330 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-1/8"ID X 2-1/2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
856
$0.22

Add:
Min:  4
Quantity Discounts
4-149$0.22
150-909$0.17
910+$0.11
-331 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70331

-331 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-1/4"ID X 2-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
167
$0.23

Add:
Min:  3
Quantity Discounts
3-149$0.23
150-834$0.17
835+$0.12
-332 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70332

-332 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-3/8"ID X 2-3/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
260
$0.26

Add:
Min:  3
Quantity Discounts
3-124$0.26
125-769$0.20
770+$0.13
-333 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70333

-333 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-1/2"ID X 2-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
250
$0.28

Add:
Min:  3
Quantity Discounts
3-119$0.28
120-714$0.21
715+$0.14
-334 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70334

-334 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-5/8"ID X 3"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
308
$0.29

Add:
Min:  3
Quantity Discounts
3-114$0.29
115-669$0.22
670+$0.15
-335 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70335

-335 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-3/4"ID X 3-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
204
$0.30

Add:
Min:  3
Quantity Discounts
3-109$0.30
110-669$0.23
670+$0.15
-336 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70336

-336 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

2-7/8"ID X 3-1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1122
$0.30

Add:
Min:  3
Quantity Discounts
3-109$0.30
110-669$0.23
670+$0.15
-337 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70337

-337 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3"ID X 3-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
297
$0.34

Add:
Min:  3
Quantity Discounts
3-99$0.34
100-589$0.26
590+$0.17
-338 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70338

-338 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-1/8"ID X 3-1/2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
238
$0.34

Add:
Min:  3
Quantity Discounts
3-99$0.34
100-589$0.26
590+$0.17
-339 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70339

-339 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-1/4"ID X 3-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
147
$0.36

Add:
Min:  3
Quantity Discounts
3-94$0.36
95-559$0.27
560+$0.18
-340 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70340

-340 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-3/8"ID X 3-3/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
64
$0.36

Add:
Min:  2
Quantity Discounts
2-94$0.36
95-559$0.27
560+$0.18
-341 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70341

-341 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-1/2"ID X 3-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
116
$0.36

Add:
Min:  2
Quantity Discounts
2-94$0.36
95-559$0.27
560+$0.18
-342 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70342

-342 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-5/8"ID X 4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
765
$0.37

Add:
Min:  2
Quantity Discounts
2-89$0.37
90-529$0.28
530+$0.19
-343 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70343

-343 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-3/4"ID X 4-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
344
$0.39

Add:
Min:  2
Quantity Discounts
2-89$0.39
90-499$0.29
500+$0.20
-344 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70344

-344 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

3-7/8"ID X 4-1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1024
$0.41

Add:
Min:  2
Quantity Discounts
2-84$0.41
85-479$0.31
480+$0.21
-345 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70345

-345 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4"ID X 4-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
154
$0.43

Add:
Min:  2
Quantity Discounts
2-79$0.43
80-459$0.32
460+$0.22
-346 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70346

-346 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-1/8"ID X 4-1/2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
379
$0.43

Add:
Min:  2
Quantity Discounts
2-79$0.43
80-459$0.32
460+$0.22
-347 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70347

-347 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-1/4"ID X 4-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
83
$0.44

Add:
Min:  2
Quantity Discounts
2-79$0.44
80-459$0.33
460+$0.22
-348 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70348

-348 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-3/8"ID X 4-3/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
108
$0.44

Add:
Min:  2
Quantity Discounts
2-79$0.44
80-454$0.33
455+$0.22