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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 Stock+ Price Quantity Discounts
AS568-319 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70319

AS568-319 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1-1/16"ID X 1-7/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
-60
$0.12

Add:
Min:  7
Quantity Discounts
7-388$0.12
389-2,499$0.09
2,500+$0.06
AS568-330 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70330

AS568-330 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...
-12
$0.22

Add:
Min:  4
Quantity Discounts
4-212$0.22
213-1,363$0.17
1,364+$0.11
12" to 18" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring VN70.210-018

12" to 18" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring

300mm ID to 450mm ID / 12" to 18" ID Spliced & Vulcanized O-Rings - Typical lead time is 3-5 days to ship. Spliced and vulcanized...
0
$6.75



Quantity Discounts
1$6.75
2-9$6.08
10+$5.06
18" to 24" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring VN70.210-024

18" to 24" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring

450mm ID to 600mm ID / 18" to 24" ID Spliced & Vulcanized O-Rings - Typical lead time is 3-5 days to ship. Spliced and vulcanized...
0
$7.00



Quantity Discounts
1$7.00
2-9$6.30
10+$5.25
24" to 30" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring VN70.210-030

24" to 30" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring

600mm ID to 762mm / 24" to 30" ID Spliced & Vulcanized O-Rings - Typical lead time is 3-5 days to ship. Spliced and vulcanized o-rings...
0
$7.50



Quantity Discounts
1$7.50
2-9$6.75
10+$5.63
30" to 36" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring VN70.210-036

30" to 36" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring

762mm ID to 914mm ID / 30" to 36" ID Spliced & Vulcanized O-Rings - Typical lead time is 3-5 days to ship. Spliced and vulcanized...
0
$7.75



Quantity Discounts
1$7.75
2-9$6.98
10+$5.81
5" to 12" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring VN70.210-012

5" to 12" ID X 0.210" (5.33mm) C/S Buna-N 70 Vulcanized O-Ring

125mm ID to 300mm ID / 5" to 12" ID Spliced & Vulcanized O-Rings - Typical lead time is 3-5 days to ship. Spliced and vulcanized...
0
$6.50



Quantity Discounts
1$6.50
2-9$5.85
10+$4.88
AS568-327 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70327

AS568-327 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

1-3/4"ID X 2-1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.17

Add:
Min:  5
Quantity Discounts
5-274$0.17
275-1,764$0.13
1,765+$0.09
AS568-335 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70335

AS568-335 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...
0
$0.30

Add:
Min:  3
Quantity Discounts
3-155$0.30
156-999$0.23
1,000+$0.15
AS568-342 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70342

AS568-342 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...
0
$0.37

Add:
Min:  2
Quantity Discounts
2-126$0.37
127-810$0.28
811+$0.19
AS568-359 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70359

AS568-359 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...
0
$0.74

Add:
Min:  2
Quantity Discounts
2-63$0.74
64-405$0.56
406+$0.37
AS568-367 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70367

AS568-367 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...
0
$0.94

Add:

Quantity Discounts
1-49$0.94
50-319$0.71
320+$0.47
AS568-375 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70375

AS568-375 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9-1/2"ID X 9-7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.32

Add:

Quantity Discounts
1-35$1.32
36-227$0.99
228+$0.66
AS568-381 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70381

AS568-381 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

12"ID X 12-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$2.13

Add:

Quantity Discounts
1-21$2.13
22-140$1.60
141+$1.07
AS568-385 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70385

AS568-385 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

16"ID X 16-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$3.42

Add:

Quantity Discounts
1-13$3.42
14-87$2.57
88+$1.71
AS568-393 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70393

AS568-393 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

24"ID X 24-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$6.61

Add:

Quantity Discounts
1-7$6.61
8-45$4.96
46+$3.31
AS568-364 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70364

AS568-364 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...
1
$0.92

Add:

Quantity Discounts
1-50$0.92
51-326$0.69
327+$0.46
AS568-394 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70394

AS568-394 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

25"ID X 25-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
4
$6.88

Add:

Quantity Discounts
1-6$6.88
7-43$5.16
44+$3.44
AS568-395 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70395

AS568-395 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

26"ID X 26-3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
5
$8.62

Add:

Quantity Discounts
1-5$8.62
6-34$6.47
35+$4.31
AS568-337 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70337

AS568-337 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...
7
$0.34

Add:
Min:  3
Quantity Discounts
3-137$0.34
138-882$0.26
883+$0.17