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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
-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...
672
$1.13

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Quantity Discounts
1-41$1.13
42-265$0.85
266+$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...
97
$1.14

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Quantity Discounts
1-40$1.14
41-263$0.86
264+$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...
33
$1.17

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Quantity Discounts
1-39$1.17
40-256$0.88
257+$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

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Quantity Discounts
1-38$1.22
39-245$0.92
246+$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...
-25
$1.29

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Quantity Discounts
1-36$1.29
37-232$0.97
233+$0.65
-445 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70445

-445 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8"ID X 8 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...
143
$1.38

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Quantity Discounts
1-33$1.38
34-217$1.04
218+$0.69
-446 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70446

-446 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

8 1/2"ID X 9"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
8
$1.52

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Quantity Discounts
1-30$1.52
31-197$1.14
198+$0.76
-447 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70447

-447 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9"ID X 9 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...
13
$1.54

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Quantity Discounts
1-30$1.54
31-194$1.16
195+$0.77
-448 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70448

-448 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

9-1/2"ID X 10"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
86
$1.67

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Quantity Discounts
1-27$1.67
28-179$1.25
180+$0.84
-449 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70449

-449 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

10"ID X 10 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...
130
$1.78

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Quantity Discounts
1-26$1.78
27-168$1.34
169+$0.89
-450 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70450

-450 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

10 1/2"ID X 11"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
3
$2.28

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Quantity Discounts
1-20$2.28
21-131$1.71
132+$1.14
-451 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70451

-451 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

11"ID X 11 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...
24
$2.37

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Quantity Discounts
1-19$2.37
20-126$1.78
127+$1.19
-452 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70452

-452 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

11 1/2"ID X 12"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
26
$2.47

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Quantity Discounts
1-18$2.47
19-121$1.85
122+$1.24
-453 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70453

-453 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

12"ID X 12 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...
50
$2.57

Add:

Quantity Discounts
1-18$2.57
19-116$1.93
117+$1.29
-454 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70454

-454 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

12 1/2"ID X 13"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
66
$2.67

Add:

Quantity Discounts
1-17$2.67
18-112$2.00
113+$1.34
-455 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70455

-455 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

13"ID X 13 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...
27
$2.76

Add:

Quantity Discounts
1-16$2.76
17-108$2.07
109+$1.38
-456 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70456

-456 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

13 1/2"ID X 14"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
9
$2.88

Add:

Quantity Discounts
1-16$2.88
17-104$2.16
105+$1.44
-457 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70457

-457 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

14"ID X 14 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...
37
$2.93

Add:

Quantity Discounts
1-15$2.93
16-102$2.20
103+$1.47
-458 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70458

-458 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

14 1/2"ID X 15"OD X 1/4"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
105
$2.96

Add:

Quantity Discounts
1-15$2.96
16-101$2.22
102+$1.48
-459 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring B70459

-459 B70 (NBR) Buna-N Nitrile 70 Duro O-Ring

15"ID X 15 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...
14
$3.26

Add:

Quantity Discounts
1-14$3.26
15-92$2.45
93+$1.63