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-300 Series - 0.210 - 3/16" CS




Image Model+ Item Name Stock Price Quantity Discounts
-309 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70309

-309 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

7/16"ID X 13/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.60

Add:
Min:  334
Quantity Discounts
334-777$0.60
778-4,999$0.45
5,000+$0.30
-310 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70310

-310 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1/2"ID X 7/8"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.60

Add:
Min:  334
Quantity Discounts
334-777$0.60
778-4,999$0.45
5,000+$0.30
-311 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70311

-311 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

9/16"ID X 15/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.60

Add:
Min:  334
Quantity Discounts
334-777$0.60
778-4,999$0.45
5,000+$0.30
-312 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70312

-312 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

5/8"ID X 1"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.60

Add:
Min:  334
Quantity Discounts
334-777$0.60
778-4,999$0.45
5,000+$0.30
-313 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70313

-313 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

11/16"ID X 1-1/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$0.60

Add:
Min:  334
Quantity Discounts
334-777$0.60
778-4,999$0.45
5,000+$0.30
-314 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70314

-314 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

3/4"ID X 1-1/8"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
551
$0.60

Add:

Quantity Discounts
1-777$0.60
778-4,999$0.45
5,000+$0.30
-315 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70315

-315 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

13/16"ID X 1-3/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$0.64

Add:
Min:  313
Quantity Discounts
313-729$0.64
730-4,687$0.48
4,688+$0.32
-316 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70316

-316 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

7/8"ID X 1-1/4"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.68

Add:
Min:  295
Quantity Discounts
295-686$0.68
687-4,411$0.51
4,412+$0.34
-317 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70317

-317 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

15/16"ID X 1-5/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$0.72

Add:
Min:  278
Quantity Discounts
278-648$0.72
649-4,166$0.54
4,167+$0.36
-318 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70318

-318 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1"ID X 1-3/8"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
0
$0.76

Add:
Min:  264
Quantity Discounts
264-614$0.76
615-3,947$0.57
3,948+$0.38
-319 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70319

-319 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-1/16"ID X 1-7/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
935
$0.80

Add:

Quantity Discounts
1-583$0.80
584-3,749$0.60
3,750+$0.40
-320 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70320

-320 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-1/8"ID X 1-1/2"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$0.84

Add:
Min:  239
Quantity Discounts
239-555$0.84
556-3,571$0.63
3,572+$0.42
-321 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70321

-321 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-3/16"ID X 1-9/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
25
$0.88

Add:

Quantity Discounts
1-530$0.88
531-3,409$0.66
3,410+$0.44
-322 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70322

-322 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are present, such as in the food processing,...
0
$0.92

Add:
Min:  218
Quantity Discounts
218-507$0.92
508-3,260$0.69
3,261+$0.46
-323 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70323

-323 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-5/16"ID X 1-11/16"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$0.96

Add:
Min:  209
Quantity Discounts
209-486$0.96
487-3,124$0.72
3,125+$0.48
-324 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70324

-324 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-3/8"ID X 1-3/4"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$1.00

Add:
Min:  200
Quantity Discounts
200-466$1.00
467-2,999$0.75
3,000+$0.50
-325 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70325

-325 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-1/2"ID X 1-7/8"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
3082
$1.06

Add:

Quantity Discounts
1-440$1.06
441-2,830$0.80
2,831+$0.53
-326 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70326

-326 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-5/8"ID X 2"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables are...
223
$1.12

Add:

Quantity Discounts
1-416$1.12
417-2,678$0.84
2,679+$0.56
-327 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70327

-327 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-3/4"ID X 2-1/8"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
39
$1.18

Add:

Quantity Discounts
1-395$1.18
396-2,542$0.89
2,543+$0.59
-328 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring WN70328

-328 WN70 FDA White (NBR) Buna-N Nitrile 70 Duro O-Ring

1-7/8"ID X 2-1/4"OD X 3/16"CS FDA Grade White Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
2512
$1.24

Add:

Quantity Discounts
1-376$1.24
377-2,419$0.93
2,420+$0.62


What are the most common O-ring compounds?

We stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Buna-N O-Rings / Nitrile O-Rings / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.
AS-568 Buna-N O-Rings | Metric Buna-N O-Rings

Viton® O-Rings / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.
AS-568 Viton® O-Rings | Metric Viton® O-Rings

Ethylene-Propylene / EPDM O-Rings: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.
AS-568 EPDM O-Rings | Metric EPDM O-Rings

Silicone O-Rings / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.
AS-568 Silicone O-Rings | Metric Silicone O-Rings

Neoprene® O-Rings / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.
AS-568 Neoprene® O-Rings