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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
-349 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70349

-349 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-1/2"ID X 4-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro: Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and...
9
$0.48

Add:
Min:  2
Quantity Discounts
2-69$0.48
70-419$0.36
420+$0.24
-350 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70350

-350 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-5/8"ID X 5"OD X 3/16"CS Buna-N O-Rings 70 Duro: Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle....
-26
$0.49

Add:
Min:  2
Quantity Discounts
2-69$0.49
70-399$0.37
400+$0.25
-351 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70351

-351 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-3/4"ID X 5-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
154
$0.53

Add:
Min:  2
Quantity Discounts
2-64$0.53
65-374$0.40
375+$0.27
-352 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70352

-352 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4-7/8"ID X 5-1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
245
$0.54

Add:
Min:  2
Quantity Discounts
2-64$0.54
65-374$0.41
375+$0.27
-353 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70353

-353 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5"ID X 5-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
191
$0.54

Add:
Min:  2
Quantity Discounts
2-64$0.54
65-374$0.41
375+$0.27
-354 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70354

-354 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-1/8"ID X 5-1/2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2189
$0.54

Add:
Min:  2
Quantity Discounts
2-64$0.54
65-374$0.41
375+$0.27
-355 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70355

-355 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-1/4"ID X 5-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
505
$0.59

Add:
Min:  2
Quantity Discounts
2-59$0.59
60-334$0.44
335+$0.30
-356 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70356

-356 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-3/8"ID X 5-3/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
13
$0.67

Add:
Min:  2
Quantity Discounts
2-49$0.67
50-294$0.50
295+$0.34
-357 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70357

-357 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-1/2"ID X 5-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
182
$0.68

Add:
Min:  2
Quantity Discounts
2-49$0.68
50-294$0.51
295+$0.34
-358 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70358

-358 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-5/8"ID X 6"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
161
$0.71

Add:
Min:  2
Quantity Discounts
2-49$0.71
50-279$0.53
280+$0.36
-359 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70359

-359 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-3/4"ID X 6-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
258
$0.74

Add:
Min:  2
Quantity Discounts
2-44$0.74
45-274$0.56
275+$0.37
-360 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70360

-360 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5-7/8"ID X 6-1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
583
$0.78

Add:
Min:  2
Quantity Discounts
2-44$0.78
45-259$0.59
260+$0.39
-361 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70361

-361 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6"ID X 6-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
26
$0.81

Add:
Min:  2
Quantity Discounts
2-44$0.81
45-244$0.61
245+$0.41
-362 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70362

-362 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6-1/4"ID X 6-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
159
$0.84

Add:
Min:  2
Quantity Discounts
2-39$0.84
40-239$0.63
240+$0.42
-363 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70363

-363 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6-1/2"ID X 6-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
112
$0.88

Add:

Quantity Discounts
1-39$0.88
40-229$0.66
230+$0.44
-364 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70364

-364 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6-3/4"ID X 7-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
59
$0.92

Add:

Quantity Discounts
1-39$0.92
40-219$0.69
220+$0.46
-365 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70365

-365 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7"ID X 7-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
29
$0.92

Add:

Quantity Discounts
1-39$0.92
40-219$0.69
220+$0.46
-366 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70366

-366 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7-1/4"ID X 7-5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
151
$0.93

Add:

Quantity Discounts
1-39$0.93
40-214$0.70
215+$0.47
-367 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70367

-367 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7-1/2"ID X 7-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
72
$0.94

Add:

Quantity Discounts
1-39$0.94
40-214$0.71
215+$0.47
-368 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70368

-368 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7-3/4"ID X 8-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
4
$0.96

Add:

Quantity Discounts
1-34$0.96
35-209$0.72
210+$0.48