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-400 Series - 0.275 - 1/4" CS




Image Model+ Item Name Stock Price Quantity Discounts
-425 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75425

-425 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 4 1/2"ID X 5"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
37
$7.60

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Quantity Discounts
1-6$7.60
7-39$5.70
40+$3.80
-426 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75426

-426 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 4 5/8"ID X 5 1/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
63
$7.96

Add:

Quantity Discounts
1-5$7.96
6-37$5.97
38+$3.98
-427 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75427

-427 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 4 3/4"ID X 5 1/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
10
$8.30

Add:

Quantity Discounts
1-5$8.30
6-36$6.23
37+$4.15
-428 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75428

-428 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 4 7/8"ID X 5 3/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
12
$8.49

Add:

Quantity Discounts
1-5$8.49
6-35$6.37
36+$4.25
-429 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75429

-429 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5"ID X 5 1/2"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
9
$8.68

Add:

Quantity Discounts
1-5$8.68
6-34$6.51
35+$4.34
-430 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75430

-430 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 1/8"ID X 5 5/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
0
$8.86

Add:

Quantity Discounts
1-5$8.86
6-33$6.65
34+$4.43
-431 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75431

-431 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 1/4"ID X 5 3/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
0
$9.04

Add:

Quantity Discounts
1-5$9.04
6-33$6.78
34+$4.52
-432 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75432

-432 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 3/8"ID X 5 7/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
5
$9.22

Add:

Quantity Discounts
1-5$9.22
6-32$6.92
33+$4.61
-433 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75433

-433 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 1/2"ID X 6"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
0
$9.41

Add:

Quantity Discounts
1-4$9.41
5-31$7.06
32+$4.71
-434 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75434

-434 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 5/8"ID X 6 1/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
9
$9.59

Add:

Quantity Discounts
1-4$9.59
5-31$7.19
32+$4.80
-435 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75435

-435 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 3/4"ID X 6 1/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
0
$9.78

Add:

Quantity Discounts
1-4$9.78
5-30$7.34
31+$4.89
-436 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75436

-436 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 5 7/8"ID X 6 3/8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
0
$9.96

Add:

Quantity Discounts
1-4$9.96
5-30$7.47
31+$4.98
-437 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75437

-437 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 6"ID X 6 1/2"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
8
$11.32

Add:

Quantity Discounts
1-4$11.32
5-26$8.49
27+$5.66
-438 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75438

-438 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 6 1/4"ID X 6 3/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
52
$11.69

Add:

Quantity Discounts
1-3$11.69
4-25$8.77
26+$5.85
-439 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75439

-439 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 6 1/2"ID X 7"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
0
$12.05

Add:

Quantity Discounts
1-3$12.05
4-24$9.04
25+$6.03
-440 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75440

-440 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 6 3/4"ID X 7 1/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
1
$12.42

Add:

Quantity Discounts
1-3$12.42
4-24$9.32
25+$6.21
-441 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75441

-441 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 7"ID X 7 1/2"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
0
$12.79

Add:

Quantity Discounts
1-3$12.79
4-23$9.59
24+$6.40
-442 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75442

-442 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 7 1/4"ID X 7 3/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
9
$13.16

Add:

Quantity Discounts
1-3$13.16
4-22$9.87
23+$6.58
-443 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75443

-443 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 7 1/2"ID X 8"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton® (Fluorocarbon...
7
$13.53

Add:

Quantity Discounts
1-3$13.53
4-22$10.15
23+$6.77
-444 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings BV75444

-444 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings

O-ring Size: 7 3/4"ID X 8 1/4"OD X 1/4"CS Viton O-Rings 75 Durometer (Fluorocarbon, FKM) : A chemical resistant Viton®...
5
$13.89

Add:

Quantity Discounts
1-3$13.89
4-21$10.42
22+$6.95


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