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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
$0.08

Add:
Min Qty:  6,250
Quantity Discounts
6250-9,374$0.08
9,375-35,714$0.064
35,715+$0.048
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...
14,288
$0.08

Add:
Min Qty:  13
Quantity Discounts
13-9,374$0.08
9,375-35,714$0.064
35,715+$0.048
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
$0.08

Add:
Min Qty:  6,250
Quantity Discounts
6250-9,374$0.08
9,375-35,714$0.064
35,715+$0.048
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...
187
$0.08

Add:
Min Qty:  13
Quantity Discounts
13-8,203$0.08
8,204-31,249$0.064
31,250+$0.048
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
$0.08

Add:
Min Qty:  6,250
Quantity Discounts
6250-8,203$0.08
8,204-31,249$0.064
31,250+$0.048
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
$0.08

Add:
Min Qty:  6,250
Quantity Discounts
6250-8,203$0.08
8,204-31,249$0.064
31,250+$0.048
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...
521
$0.10

Add:
Min Qty:  10
Quantity Discounts
10-6,562$0.10
6,563-24,999$0.08
25,000+$0.06
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...
1,003
$0.10

Add:
Min Qty:  10
Quantity Discounts
10-6,562$0.10
6,563-24,999$0.08
25,000+$0.06
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...
15,417
$0.11

Add:
Min Qty:  10
Quantity Discounts
10-6,562$0.11
6,563-24,999$0.088
25,000+$0.066
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...
12,459
$0.12

Add:
Min Qty:  9
Quantity Discounts
9-5,965$0.12
5,966-22,727$0.096
22,728+$0.072
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...
11,715
$0.12

Add:
Min Qty:  9
Quantity Discounts
9-5,965$0.12
5,966-22,727$0.096
22,728+$0.072
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...
2,018
$0.13

Add:
Min Qty:  8
Quantity Discounts
8-5,048$0.13
5,049-19,230$0.104
19,231+$0.078
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...
20,293
$0.14

Add:
Min Qty:  8
Quantity Discounts
8-4,687$0.14
4,688-17,857$0.112
17,858+$0.084
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
$0.16

Add:
Min Qty:  7
Quantity Discounts
7-4,374$0.16
4,375-16,666$0.128
16,667+$0.096
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...
7,965
$0.16

Add:
Min Qty:  7
Quantity Discounts
7-4,374$0.16
4,375-16,666$0.128
16,667+$0.096
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
$0.16

Add:
Min Qty:  7
Quantity Discounts
7-4,101$0.16
4,102-15,624$0.128
15,625+$0.096
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
$0.17

Add:
Min Qty:  6
Quantity Discounts
6-3,860$0.17
3,861-14,705$0.136
14,706+$0.102
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...
173
$0.19

Add:
Min Qty:  6
Quantity Discounts
6-3,645$0.19
3,646-13,888$0.152
13,889+$0.114
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...
5,798
$0.20

Add:
Min Qty:  5
Quantity Discounts
5-3,453$0.20
3,454-13,157$0.16
13,158+$0.12
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
$0.20

Add:
Min Qty:  5
Quantity Discounts
5-3,453$0.20
3,454-13,157$0.16
13,158+$0.12
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
$0.21

Add:
Min Qty:  5
Quantity Discounts
5-3,124$0.21
3,125-11,904$0.168
11,905+$0.126
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...
2,383
$0.22

Add:
Min Qty:  5
Quantity Discounts
5-2,982$0.22
2,983-11,363$0.176
11,364+$0.132
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
$0.23

Add:
Min Qty:  2,174
Quantity Discounts
2174-2,982$0.23
2,983-11,363$0.184
11,364+$0.138
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...
4,295
$0.27

Add:
Min Qty:  4
Quantity Discounts
4-2,524$0.27
2,525-9,615$0.216
9,616+$0.162
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...
3,862
$0.28

Add:
Min Qty:  4
Quantity Discounts
4-2,430$0.28
2,431-9,259$0.224
9,260+$0.168