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-300 Series - 0.210 - 3/16" CS

50 Durometer, Commercial Grade Soft Buna-N

Designed for applications requiring soft O-ring sealing material. Primarily used as a low pressure static seal or gasket. B50 O-rings not in stock may take up to 7 weeks to ship. 6" ID & larger Vulcanized O-Rings available to reduce delivery times and minimum orders. Link to order B50 Vulcanized O-Rings.

Size not listed, special requirements or large quantities please click this link to Request a Price Quote.

 




Image Model+ Item Name Qty. Price Quantity Discounts
-349 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50349

-349 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-1/2"ID X 4-7/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$3.83

Add:
Min:  27
Quantity Discounts
27-320$3.83
321-2,403$2.87
2,404+$1.92
-350 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50350

-350 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-5/8"ID X 5"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$3.93

Add:
Min:  26
Quantity Discounts
26-314$3.93
315-2,358$2.95
2,359+$1.97
-351 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50351

-351 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-3/4"ID X 5-1/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$3.99

Add:
Min:  26
Quantity Discounts
26-308$3.99
309-2,314$2.99
2,315+$2.00
-352 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50352

-352 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

4-7/8"ID X 5-1/4"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$4.13

Add:
Min:  25
Quantity Discounts
25-303$4.13
304-2,272$3.10
2,273+$2.07
-353 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50353

-353 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5"ID X 5-3/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$5.10

Add:
Min:  20
Quantity Discounts
20-297$5.10
298-2,232$3.83
2,233+$2.55
-354 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50354

-354 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5-1/8"ID X 5-1/2"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3
$5.12

Add:

Quantity Discounts
1-292$5.12
293-2,192$3.84
2,193+$2.56
-355 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50355

-355 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.14

Add:
Min:  20
Quantity Discounts
20-287$5.14
288-2,155$3.86
2,156+$2.57
-356 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50356

-356 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.16

Add:
Min:  20
Quantity Discounts
20-282$5.16
283-2,118$3.87
2,119+$2.58
-357 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50357

-357 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5-1/2"ID X 5-7/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$5.25

Add:
Min:  20
Quantity Discounts
20-277$5.25
278-2,083$3.94
2,084+$2.63
-358 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50358

-358 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5-5/8"ID X 6"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
29
$5.27

Add:

Quantity Discounts
1-9$5.27
10-58$3.95
59+$2.64
-359 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50359

-359 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
15
$5.34

Add:

Quantity Discounts
1-260$5.34
261-1,953$4.01
1,954+$2.67
-360 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50360

-360 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
1
$5.52

Add:

Quantity Discounts
1-249$5.52
250-1,879$4.14
1,880+$2.76
-361 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50361

-361 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
7
$5.52

Add:

Quantity Discounts
1-240$5.52
241-1,798$4.14
1,799+$2.76
-362 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50362

-362 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.57

Add:
Min:  18
Quantity Discounts
18-231$5.57
232-1,736$4.18
1,737+$2.79
-363 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50363

-363 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.74

Add:
Min:  18
Quantity Discounts
18-222$5.74
223-1,666$4.31
1,667+$2.87
-364 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50364

-364 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$5.88

Add:
Min:  18
Quantity Discounts
18-214$5.88
215-1,612$4.41
1,613+$2.94
-365 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50365

-365 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$8.70

Add:
Min:  12
Quantity Discounts
12-207$8.70
208-1,552$6.53
1,553+$4.35
-366 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50366

-366 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$8.93

Add:
Min:  12
Quantity Discounts
12-200$8.93
201-1,506$6.70
1,507+$4.47
-367 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50367

-367 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
1
$9.03

Add:

Quantity Discounts
1-193$9.03
194-1,453$6.77
1,454+$4.52
-368 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50368

-368 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of...
0
$9.17

Add:
Min:  11
Quantity Discounts
11-187$9.17
188-1,412$6.88
1,413+$4.59