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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
$0.13

Add:
Min Qty:  2,308
Quantity Discounts
2308-5,128$0.13
5,129-23,076$0.098
23,077+$0.065
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...
14,413
$0.13

Add:
Min Qty:  4
Quantity Discounts
4-5,128$0.13
5,129-23,076$0.098
23,077+$0.065
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
$0.14

Add:
Min Qty:  2,143
Quantity Discounts
2143-4,761$0.14
4,762-21,428$0.105
21,429+$0.07
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...
0
$0.15

Add:
Min Qty:  2,000
Quantity Discounts
2000-4,444$0.15
4,445-19,999$0.113
20,000+$0.075
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
$0.16

Add:
Min Qty:  1,875
Quantity Discounts
1875-4,166$0.16
4,167-18,749$0.12
18,750+$0.08
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
$0.16

Add:
Min Qty:  17,143
Quantity Discounts
17143-4,166$0.16
4,167-18,749$0.12
18,750+$0.08
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...
622
$0.17

Add:
Min Qty:  3
Quantity Discounts
3-3,921$0.17
3,922-17,647$0.128
17,648+$0.085
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
$0.18

Add:
Min Qty:  3
Quantity Discounts
3-3,703$0.18
3,704-16,666$0.135
16,667+$0.09
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...
15,420
$0.20

Add:
Min Qty:  3
Quantity Discounts
3-3,333$0.20
3,334-14,999$0.15
15,000+$0.10
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...
12,557
$0.23

Add:
Min Qty:  3
Quantity Discounts
3-2,898$0.23
2,899-13,043$0.173
13,044+$0.115
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...
11,795
$0.24

Add:
Min Qty:  3
Quantity Discounts
3-2,777$0.24
2,778-12,499$0.18
12,500+$0.12
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...
6,038
$0.27

Add:
Min Qty:  2
Quantity Discounts
2-2,469$0.27
2,470-11,111$0.203
11,112+$0.135
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...
20,565
$0.29

Add:
Min Qty:  2
Quantity Discounts
2-2,298$0.29
2,299-10,344$0.218
10,345+$0.145
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...
9,084
$0.32

Add:
Min Qty:  2
Quantity Discounts
2-2,083$0.32
2,084-9,374$0.24
9,375+$0.16
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...
8,089
$0.34

Add:
Min Qty:  2
Quantity Discounts
2-1,960$0.34
1,961-8,823$0.255
8,824+$0.17
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...
3,369
$0.37

Add:
Min Qty:  2
Quantity Discounts
2-1,801$0.37
1,802-8,108$0.278
8,109+$0.185
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...
7,517
$0.40

Add:
Min Qty:  2
Quantity Discounts
2-1,666$0.40
1,667-7,499$0.30
7,500+$0.20
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...
202
$0.42

Add:
Min Qty:  2
Quantity Discounts
2-1,587$0.42
1,588-7,142$0.315
7,143+$0.21
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...
5,849
$0.46

Add:
Min Qty:  2
Quantity Discounts
2-1,449$0.46
1,450-6,521$0.345
6,522+$0.23
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...
11,470
$0.46

Add:
Min Qty:  2
Quantity Discounts
2-1,449$0.46
1,450-6,521$0.345
6,522+$0.23