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-300 Series - 0.210 - 3/16" CS

 Perfluoroelastomer (FFKM) O-Rings

Commonly referred to as Isolast O-Rings (Trelleborg Sealing Solutions), Kalrez O-Rings (DuPont Dow), Chemraz O-Rings (Greene, Tweed & Co.), and Simriz O-Rings (Simrit). This expensive elastomer type is usually produced as a terpolymer of tetrafluoroethylene, a cure site monomer used for cross-linking, and a perfluorovinyl ether. Best O-Ring compound for chemical resistance.

Size not listed, special requirements or large quantities please click this link to Request a Price Quote.

 




Image Model+ Item Name Stock Price Quantity Discounts
FFKM-309 Perfluoroelastomer (FFKM) O-rings FFKM-309

FFKM-309 Perfluoroelastomer (FFKM) O-rings

7/16" ID X 13/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$63.87

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Quantity Discounts
1-20$63.87
21-156$47.90
157+$31.94
FFKM-310 Perfluoroelastomer (FFKM) O-rings FFKM-310

FFKM-310 Perfluoroelastomer (FFKM) O-rings

1/2" ID X 7/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont trade...
0
$78.12

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Quantity Discounts
1-17$78.12
18-128$58.59
129+$39.06
FFKM-311 Perfluoroelastomer (FFKM) O-rings FFKM-311

FFKM-311 Perfluoroelastomer (FFKM) O-rings

9/16" ID X 15-16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$84.57

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Quantity Discounts
1-15$84.57
16-118$63.43
119+$42.29
FFKM-312 Perfluoroelastomer (FFKM) O-rings FFKM-312

FFKM-312 Perfluoroelastomer (FFKM) O-rings

5/8" ID X 1" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont trade...
0
$89.61

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Quantity Discounts
1-14$89.61
15-111$67.21
112+$44.81
FFKM-313 Perfluoroelastomer (FFKM) O-rings FFKM-313

FFKM-313 Perfluoroelastomer (FFKM) O-rings

11/16" ID X 1-1/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$95.18

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Quantity Discounts
1-14$95.18
15-105$71.39
106+$47.59
FFKM-314 Perfluoroelastomer (FFKM) O-rings FFKM-314

FFKM-314 Perfluoroelastomer (FFKM) O-rings

3/4" ID X 1-1/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$95.51

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Quantity Discounts
1-13$95.51
14-104$71.63
105+$47.76
FFKM-315 Perfluoroelastomer (FFKM) O-rings FFKM-315

FFKM-315 Perfluoroelastomer (FFKM) O-rings

13/16" ID X 1-3/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$100.21

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Quantity Discounts
1-13$100.21
14-99$75.16
100+$50.11
FFKM-316 Perfluoroelastomer (FFKM) O-rings FFKM-316

FFKM-316 Perfluoroelastomer (FFKM) O-rings

7/8" ID X 1-1/4" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$107.73

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Quantity Discounts
1-12$107.73
13-92$80.80
93+$53.87
FFKM-317 Perfluoroelastomer (FFKM) O-rings FFKM-317

FFKM-317 Perfluoroelastomer (FFKM) O-rings

15/16" ID X 1-5/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$113.75

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Quantity Discounts
1-11$113.75
12-87$85.31
88+$56.88
FFKM-318 Perfluoroelastomer (FFKM) O-rings FFKM-318

FFKM-318 Perfluoroelastomer (FFKM) O-rings

1" ID X 1-3/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont trade...
0
$114.82

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Quantity Discounts
1-11$114.82
12-87$86.12
88+$57.41
FFKM-319 Perfluoroelastomer (FFKM) O-rings FFKM-319

FFKM-319 Perfluoroelastomer (FFKM) O-rings

1-1/16" ID X 1-7/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$124.87

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Quantity Discounts
1-10$124.87
11-80$93.65
81+$62.44
FFKM-320 Perfluoroelastomer (FFKM) O-rings FFKM-320

FFKM-320 Perfluoroelastomer (FFKM) O-rings

1-1/8" ID X 1-1/2" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$127.23

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Quantity Discounts
1-10$127.23
11-78$95.42
79+$63.62
FFKM-321 Perfluoroelastomer (FFKM) O-rings FFKM-321

FFKM-321 Perfluoroelastomer (FFKM) O-rings

1-3/16" ID X 1-9/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$130.48

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Quantity Discounts
1-10$130.48
11-76$97.86
77+$65.24
FFKM-322 Perfluoroelastomer (FFKM) O-rings FFKM-322

FFKM-322 Perfluoroelastomer (FFKM) O-rings

1-1/4" ID X 1-5/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$124.39

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Quantity Discounts
1-10$124.39
11-80$93.29
81+$62.20
FFKM-323 Perfluoroelastomer (FFKM) O-rings FFKM-323

FFKM-323 Perfluoroelastomer (FFKM) O-rings

1-5/16" ID X 1-11/16" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$134.55

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Quantity Discounts
1-9$134.55
10-74$100.91
75+$67.28
FFKM-324 Perfluoroelastomer (FFKM) O-rings FFKM-324

FFKM-324 Perfluoroelastomer (FFKM) O-rings

1-3/8" ID X 1-3/4" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$139.56

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Quantity Discounts
1-9$139.56
10-71$104.67
72+$69.78
FFKM-325 Perfluoroelastomer (FFKM) O-rings FFKM-325

FFKM-325 Perfluoroelastomer (FFKM) O-rings

1-1/2" ID X 1-7/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$138.75

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Quantity Discounts
1-9$138.75
10-72$104.06
73+$69.38
FFKM-326 Perfluoroelastomer (FFKM) O-rings FFKM-326

FFKM-326 Perfluoroelastomer (FFKM) O-rings

1-5/8" ID X 2" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont trade...
0
$151.18

Add:

Quantity Discounts
1-8$151.18
9-66$113.39
67+$75.59
FFKM-327 Perfluoroelastomer (FFKM) O-rings FFKM-327

FFKM-327 Perfluoroelastomer (FFKM) O-rings

1-3/4" ID X 2-1/8" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$159.79

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Quantity Discounts
1-8$159.79
9-62$119.84
63+$79.90
FFKM-328 Perfluoroelastomer (FFKM) O-rings FFKM-328

FFKM-328 Perfluoroelastomer (FFKM) O-rings

1-7/8" ID X 2-1/4" OD X 3/16" Width Description: Perfluoroelastomer (FFKM) O-rings Perfluoroelastomer (FFKM) is most commonly known by the DuPont...
0
$173.19

Add:

Quantity Discounts
1-7$173.19
8-57$129.89
58+$86.60


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