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-300 Series - 3/16" CS - 0.210" 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
-309 N70 Buna-N Nitrile 70 O-ring B70309

-309 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 7/16"ID X 13/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
1046
$0.06

Add:
Min:  13
Quantity Discounts
13-624$0.06
625-3,499$0.05
3,500+$0.03
-310 N70 Buna-N Nitrile 70 O-ring B70310

-310 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1/2"ID X 7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
277
$0.06

Add:
Min:  13
Quantity Discounts
13-624$0.06
625-3,499$0.05
3,500+$0.03
-311 N70 Buna-N Nitrile 70 O-ring B70311

-311 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 9/16"ID X 15/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
565
$0.07

Add:
Min:  10
Quantity Discounts
10-624$0.07
625-3,499$0.05
3,500+$0.04
-312 N70 Buna-N Nitrile 70 O-ring B70312

-312 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 5/8"ID X 1"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
1319
$0.08

Add:
Min:  10
Quantity Discounts
10-624$0.08
625-3,499$0.06
3,500+$0.04
-313 N70 Buna-N Nitrile 70 O-ring B70313

-313 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 11/16"ID X 1 1/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
304
$0.08

Add:
Min:  9
Quantity Discounts
9-499$0.08
500-3,499$0.06
3,500+$0.04
-314 N70 Buna-N Nitrile 70 O-ring B70314

-314 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 3/4"ID X 1 1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
893
$0.09

Add:
Min:  9
Quantity Discounts
9-499$0.09
500-3,499$0.07
3,500+$0.05
-315 N70 Buna-N Nitrile 70 O-ring B70315

-315 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 13/16"ID X 1 3/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
1203
$0.09

Add:
Min:  9
Quantity Discounts
9-499$0.09
500-3,499$0.07
3,500+$0.05
-316 N70 Buna-N Nitrile 70 O-ring B70316

-316 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 7/8"ID X 1 1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
1488
$0.10

Add:
Min:  8
Quantity Discounts
8-499$0.10
500-2,499$0.08
2,500+$0.05
-317 N70 Buna-N Nitrile 70 O-ring B70317

-317 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 15/16"ID X 1 5/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
841
$0.11

Add:
Min:  8
Quantity Discounts
8-499$0.11
500-2,499$0.08
2,500+$0.06
-318 N70 Buna-N Nitrile 70 O-ring B70318

-318 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1"ID X 1 3/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
533
$0.11

Add:
Min:  7
Quantity Discounts
7-424$0.11
425-2,499$0.08
2,500+$0.06
-319 N70 Buna-N Nitrile 70 O-ring B70319

-319 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 1/16"ID X 1 7/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
167
$0.12

Add:
Min:  7
Quantity Discounts
7-424$0.12
425-2,499$0.09
2,500+$0.06
-320 N70 Buna-N Nitrile 70 O-ring B70320

-320 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 1/8"ID X 1 1/2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
795
$0.13

Add:
Min:  7
Quantity Discounts
7-359$0.13
360-1,999$0.10
2,000+$0.07
-321 N70 Buna-N Nitrile 70 O-ring B70321

-321 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 3/16"ID X 1 9/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
1155
$0.13

Add:
Min:  6
Quantity Discounts
6-359$0.13
360-1,999$0.10
2,000+$0.07
-322 N70 Buna-N Nitrile 70 O-ring B70322

-322 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 1/4"ID X 1 5/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
1034
$0.14

Add:
Min:  6
Quantity Discounts
6-359$0.14
360-1,999$0.11
2,000+$0.07
-323 N70 Buna-N Nitrile 70 O-ring B70323

-323 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 5/16"ID X 1 11/16"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
1349
$0.14

Add:
Min:  5
Quantity Discounts
5-314$0.14
315-1,999$0.11
2,000+$0.07
-324 N70 Buna-N Nitrile 70 O-ring B70324

-324 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 3/8"ID X 1 3/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
476
$0.15

Add:
Min:  5
Quantity Discounts
5-314$0.15
315-1,999$0.11
2,000+$0.08
-325 N70 Buna-N Nitrile 70 O-ring B70325

-325 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 1/2"ID X 1 7/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
0
$0.17

Add:
Min:  5
Quantity Discounts
5-314$0.17
315-1,999$0.13
2,000+$0.09
-326 N70 Buna-N Nitrile 70 O-ring B70326

-326 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 5/8"ID X 2"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile,...
685
$0.17

Add:
Min:  5
Quantity Discounts
5-314$0.17
315-1,669$0.13
1,670+$0.09
-327 N70 Buna-N Nitrile 70 O-ring B70327

-327 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 3/4"ID X 2 1/8"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
16
$0.17

Add:
Min:  5
Quantity Discounts
5-279$0.17
280-1,669$0.13
1,670+$0.09
-328 N70 Buna-N Nitrile 70 O-ring B70328

-328 N70 Buna-N Nitrile 70 O-ring

O-ring Size: 1 7/8"ID X 2 1/4"OD X 3/16"CS Buna-N O-Rings 70 Duro (NBR): The most commonly used elastomer for sealing products....
26
$0.20

Add:
Min:  4
Quantity Discounts
4-169$0.20
170-999$0.15
1,000+$0.10