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-400 Series -1/4" CS - 0.275" 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 Qty. Price+ Quantity Discounts
-434 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70434

-434 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 5/8"ID X 6 1/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
5
$0.92

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Quantity Discounts
1-74$0.92
75-419$0.69
420+$0.46
-425 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70425

-425 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 1/2"ID X 5"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
45
$0.73

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Quantity Discounts
1-49$0.73
50-274$0.55
275+$0.37
-426 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70426

-426 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 5/8"ID X 5 1/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$0.75

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Quantity Discounts
1-44$0.75
45-264$0.56
265+$0.38
-427 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70427

-427 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 3/4"ID X 5 1/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
97
$0.78

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Quantity Discounts
1-44$0.78
45-259$0.59
260+$0.39
-428 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70428

-428 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

4 7/8"ID X 5 3/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
39
$0.79

Add:

Quantity Discounts
1-44$0.79
45-249$0.59
250+$0.40
-429 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70429

-429 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5"ID X 5 1/2"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0
$0.81

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Quantity Discounts
1-44$0.81
45-244$0.61
245+$0.41
-430 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70430

-430 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/8"ID X 5 5/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
59
$0.84

Add:

Quantity Discounts
1-39$0.84
40-239$0.63
240+$0.42
-431 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70431

-431 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/4"ID X 5 3/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
430
$0.85

Add:

Quantity Discounts
1-39$0.85
40-234$0.64
235+$0.43
-432 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70432

-432 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 3/8"ID X 5 7/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
69
$0.87

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Quantity Discounts
1-39$0.87
40-229$0.65
230+$0.44
-433 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70433

-433 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 1/2"ID X 6"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
54
$0.90

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Quantity Discounts
1-39$0.90
40-224$0.68
225+$0.45
-435 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70435

-435 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 3/4"ID X 6 1/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
39
$0.94

Add:

Quantity Discounts
1-39$0.94
40-214$0.71
215+$0.47
-436 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70436

-436 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

5 7/8"ID X 6 3/8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
56
$0.96

Add:

Quantity Discounts
1-34$0.96
35-209$0.72
210+$0.48
-437 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70437

-437 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6"ID X 6 1/2"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
95
$0.97

Add:

Quantity Discounts
1-34$0.97
35-204$0.73
205+$0.49
-438 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70438

-438 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 1/4"ID X 6 3/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0
$1.00

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Quantity Discounts
1-34$1.00
35-199$0.75
200+$0.50
-439 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70439

-439 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 1/2"ID X 7"OD X 1/4"CS Buna-N O-Rings 70 Duro: Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
43
$1.07

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Quantity Discounts
1-34$1.07
35-189$0.80
190+$0.54
-440 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70440

-440 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

6 3/4"ID X 7 1/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
5
$1.13

Add:

Quantity Discounts
1-29$1.13
30-179$0.85
180+$0.57
-441 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70441

-441 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7"ID X 7 1/2"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
11
$1.14

Add:

Quantity Discounts
1-29$1.14
30-179$0.86
180+$0.57
-442 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70442

-442 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 1/4"ID X 7 3/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
34
$1.17

Add:

Quantity Discounts
1-29$1.17
30-169$0.88
170+$0.59
-443 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70443

-443 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 1/2"ID X 8"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
38
$1.22

Add:

Quantity Discounts
1-29$1.22
30-164$0.92
165+$0.61
-444 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70444

-444 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

7 3/4"ID X 8 1/4"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
13
$1.29

Add:

Quantity Discounts
1-29$1.29
30-154$0.97
155+$0.65