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-200 Series - 0.139 - 1/8" 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
AS568-201 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50201

AS568-201 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

9-3/4"ID X 9-15/16"OD X 3/32"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0
$0.04

Add:
Min Qty:  12,500
Quantity Discounts
12500-16,406$0.04
16,407-104,166$0.032
104,167+$0.024
AS568-202 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50202

AS568-202 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1/4"ID X 1/2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
14,172
$0.04

Add:
Min Qty:  25
Quantity Discounts
25-16,406$0.04
16,407-104,166$0.032
104,167+$0.024
AS568-203 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50203

AS568-203 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5/16"ID X 9/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$0.04

Add:
Min Qty:  12,500
Quantity Discounts
12500-16,406$0.04
16,407-104,166$0.032
104,167+$0.024
AS568-204 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50204

AS568-204 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3/8"ID X 5/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
62
$0.04

Add:
Min Qty:  25
Quantity Discounts
25-16,406$0.04
16,407-104,166$0.032
104,167+$0.024
AS568-205 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50205

AS568-205 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

7/16"ID X 11/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.05

Add:
Min Qty:  10,000
Quantity Discounts
10000-13,124$0.05
13,125-83,333$0.04
83,334+$0.03
AS568-206 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50206

AS568-206 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1/2"ID X 3/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$0.05

Add:
Min Qty:  10,000
Quantity Discounts
10000-13,124$0.05
13,125-83,333$0.04
83,334+$0.03
AS568-207 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50207

AS568-207 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

9/16"ID X 13/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
491
$0.05

Add:
Min Qty:  20
Quantity Discounts
20-13,124$0.05
13,125-83,333$0.04
83,334+$0.03
AS568-208 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50208

AS568-208 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

5/8"ID X 7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
943
$0.05

Add:
Min Qty:  20
Quantity Discounts
20-13,124$0.05
13,125-83,333$0.04
83,334+$0.03
AS568-209 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50209

AS568-209 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

11/16"ID X 15/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
15,397
$0.05

Add:
Min Qty:  20
Quantity Discounts
20-13,124$0.05
13,125-83,333$0.04
83,334+$0.03
AS568-210 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50210

AS568-210 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

3/4"ID X 1"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
12,439
$0.06

Add:
Min Qty:  17
Quantity Discounts
17-10,937$0.06
10,938-69,444$0.048
69,445+$0.036
AS568-211 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50211

AS568-211 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

13/16"ID X 1-1/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
11,695
$0.06

Add:
Min Qty:  17
Quantity Discounts
17-10,937$0.06
10,938-69,444$0.048
69,445+$0.036
AS568-212 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50212

AS568-212 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...
2,010
$0.07

Add:
Min Qty:  15
Quantity Discounts
15-9,374$0.07
9,375-59,523$0.056
59,524+$0.042
AS568-213 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50213

AS568-213 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

15/16"ID X 1-3/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
20,273
$0.07

Add:
Min Qty:  15
Quantity Discounts
15-9,374$0.07
9,375-59,523$0.056
59,524+$0.042
AS568-214 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50214

AS568-214 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1"ID X 1-1/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
6,800
$0.08

Add:
Min Qty:  13
Quantity Discounts
13-8,203$0.08
8,204-52,083$0.064
52,084+$0.048
AS568-215 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50215

AS568-215 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/16"ID X 1-5/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
7,958
$0.08

Add:
Min Qty:  13
Quantity Discounts
13-8,203$0.08
8,204-52,083$0.064
52,084+$0.048
AS568-216 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50216

AS568-216 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/8"ID X 1-3/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3,330
$0.09

Add:
Min Qty:  12
Quantity Discounts
12-7,291$0.09
7,292-46,296$0.072
46,297+$0.054
AS568-217 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50217

AS568-217 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-3/16"ID X 1-7/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
6,503
$0.09

Add:
Min Qty:  12
Quantity Discounts
12-7,291$0.09
7,292-46,296$0.072
46,297+$0.054
AS568-218 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50218

AS568-218 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/4"ID X 1-1/2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
163
$0.10

Add:
Min Qty:  10
Quantity Discounts
10-6,562$0.10
6,563-41,666$0.08
41,667+$0.06
AS568-219 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50219

AS568-219 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-5/16"ID X 1-9/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
5,788
$0.11

Add:
Min Qty:  10
Quantity Discounts
10-5,965$0.11
5,966-37,878$0.088
37,879+$0.066
AS568-220 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50220

AS568-220 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...
11,407
$0.11

Add:
Min Qty:  10
Quantity Discounts
10-5,965$0.11
5,966-37,878$0.088
37,879+$0.066
AS568-221 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50221

AS568-221 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-7/16"ID X 1-11/16"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
5,836
$0.11

Add:
Min Qty:  10
Quantity Discounts
10-5,965$0.11
5,966-37,878$0.088
37,879+$0.066
AS568-222 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50222

AS568-222 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-1/2"ID X 1-3/4"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
2,373
$0.11

Add:
Min Qty:  10
Quantity Discounts
10-5,965$0.11
5,966-37,878$0.088
37,879+$0.066
AS568-223 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50223

AS568-223 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-5/8"ID X 1-7/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.12

Add:
Min Qty:  9
Quantity Discounts
9-5,468$0.12
5,469-34,722$0.096
34,723+$0.072
AS568-224 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50224

AS568-224 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-3/4"ID X 2"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
4,287
$0.14

Add:
Min Qty:  8
Quantity Discounts
8-4,687$0.14
4,688-29,761$0.112
29,762+$0.084
AS568-225 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50225

AS568-225 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

1-7/8"ID X 2-1/8"OD X 1/8"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
3,847
$0.15

Add:
Min Qty:  7
Quantity Discounts
7-4,374$0.15
4,375-27,777$0.12
27,778+$0.09