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O-Rings

Codes

-300 Series - 0.210 - 3/16" CS

50 Durometer, Commercial Grade Soft Buna-N O-Rings

Designed for applications requiring soft O-Ring sealing material. Primarily used as a low pressure static seal or gasket. Buna-N compound materials are "standard” for most O-Ring service. While they are not as strong as other Buna-N O-Rings, Soft Buna-N O-Rings require less force to make an effective seal and conform better to uneven surfaces. They are suitable for a broad range of fluids including oils, water, and mild chemicals.




Image Model+ Item Name Qty. Price Quantity Discounts
AS568-309 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50309

AS568-309 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

7/16"ID X 13/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.24

Add:
Min Qty:  596
Quantity Discounts
596-3,645$0.24
3,646-20,833$0.144
20,834+$0.072
AS568-310 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50310

AS568-310 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1/2"ID X 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 as...
6,216
$0.27

Add:
Min Qty:  4
Quantity Discounts
4-3,240$0.27
3,241-18,518$0.162
18,519+$0.081
AS568-311 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50311

AS568-311 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

9/16"ID X 15/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
117,760
$0.30

Add:
Min Qty:  4
Quantity Discounts
4-2,916$0.30
2,917-16,666$0.18
16,667+$0.09
AS568-312 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50312

AS568-312 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5/8"ID X 1"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
120
$0.33

Add:
Min Qty:  4
Quantity Discounts
4-2,651$0.33
2,652-15,151$0.198
15,152+$0.099
AS568-313 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50313

AS568-313 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

11/16"ID X 1-1/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
-5
$0.33

Add:
Min Qty:  34
Quantity Discounts
34-2,651$0.33
2,652-15,151$0.198
15,152+$0.099
AS568-314 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50314

AS568-314 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3/4"ID X 1-1/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
5,024
$0.36

Add:
Min Qty:  3
Quantity Discounts
3-2,430$0.36
2,431-13,888$0.216
13,889+$0.108
AS568-315 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50315

AS568-315 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

13/16"ID X 1-3/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0
$0.39

Add:
Min Qty:  1,389
Quantity Discounts
1389-2,243$0.39
2,244-12,820$0.234
12,821+$0.117
AS568-316 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50316

AS568-316 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

7/8"ID X 1-1/4"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.39

Add:
Min Qty:  261
Quantity Discounts
261-2,243$0.39
2,244-12,820$0.234
12,821+$0.117
AS568-317 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50317

AS568-317 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

15/16"ID X 1-5/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0
$0.45

Add:
Min Qty:  834
Quantity Discounts
834-1,944$0.45
1,945-11,111$0.27
11,112+$0.135
AS568-318 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50318

AS568-318 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1"ID X 1-3/8"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
$0.48

Add:
Min Qty:  521
Quantity Discounts
521-1,822$0.48
1,823-10,416$0.288
10,417+$0.144
AS568-319 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50319

AS568-319 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/16"ID X 1-7/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
-4
$0.48

Add:
Min Qty:  142
Quantity Discounts
142-1,822$0.48
1,823-10,416$0.288
10,417+$0.144
AS568-320 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50320

AS568-320 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/8"ID X 1-1/2"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
-4
$0.51

Add:
Min Qty:  695
Quantity Discounts
695-1,715$0.51
1,716-9,803$0.306
9,804+$0.153
AS568-321 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50321

AS568-321 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...
976
$0.54

Add:
Min Qty:  2
Quantity Discounts
2-1,620$0.54
1,621-9,259$0.324
9,260+$0.162
AS568-322 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50322

AS568-322 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/4"ID X 1-5/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
-4
$0.57

Add:
Min Qty:  834
Quantity Discounts
834-1,535$0.57
1,536-8,771$0.342
8,772+$0.171
AS568-323 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50323

AS568-323 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-5/16"ID X 1-11/16"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
1,674
$0.57

Add:
Min Qty:  2
Quantity Discounts
2-1,535$0.57
1,536-8,771$0.342
8,772+$0.171
AS568-324 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50324

AS568-324 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-3/8"ID X 1-3/4"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2,330
$0.63

Add:
Min Qty:  2
Quantity Discounts
2-1,388$0.63
1,389-7,936$0.378
7,937+$0.189
AS568-325 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50325

AS568-325 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/2"ID X 1-7/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1,874
$0.66

Add:
Min Qty:  2
Quantity Discounts
2-1,325$0.66
1,326-7,575$0.396
7,576+$0.198
AS568-326 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50326

AS568-326 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-5/8"ID X 2"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
153
$0.78

Add:
Min Qty:  2
Quantity Discounts
2-1,121$0.78
1,122-6,410$0.468
6,411+$0.234
AS568-327 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50327

AS568-327 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-3/4"ID X 2-1/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2,682
$0.81

Add:
Min Qty:  2
Quantity Discounts
2-1,080$0.81
1,081-6,172$0.486
6,173+$0.243
AS568-328 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50328

AS568-328 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-7/8"ID X 2-1/4"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
44
$0.81

Add:
Min Qty:  2
Quantity Discounts
2-1,080$0.81
1,081-6,172$0.486
6,173+$0.243
AS568-329 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50329

AS568-329 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2"ID X 2-3/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
2,423
$0.99

Add:
Min Qty:  2
Quantity Discounts
2-883$0.99
884-5,050$0.594
5,051+$0.297
AS568-330 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50330

AS568-330 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-1/8"ID X 2-1/2"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3,762
$0.96

Add:
Min Qty:  2
Quantity Discounts
2-911$0.96
912-5,208$0.576
5,209+$0.288
AS568-331 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50331

AS568-331 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...
1,772
$0.99

Add:
Min Qty:  2
Quantity Discounts
2-883$0.99
884-5,050$0.594
5,051+$0.297
AS568-332 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50332

AS568-332 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-3/8"ID X 2-3/4"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
145
$1.02

Add:

Quantity Discounts
1-857$1.02
858-4,901$0.612
4,902+$0.306
AS568-333 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50333

AS568-333 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

2-1/2"ID X 2-7/8"OD X 3/16"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
1,142
$1.05

Add:

Quantity Discounts
1-833$1.05
834-4,761$0.63
4,762+$0.315




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