FFKM O-rings EN896

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
Placeholder O-ring Black60 mm  x 12 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 124.6x7 Kalrez-FFKM - 75 Shore A - Black - SES-563841 O-ring Black124.7 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black36 mm  x 4.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 428x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-578331 O-ring Black429 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 113.5x1.6 Kalrez-FFKM - 75 Shore A - Black - SES-729197 O-ring Black113.6 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 177x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-564472 O-ring Black177 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 61.17x3.1 Kalrez-FFKM - 75 Shore A - Black - SES-575566 O-ring Black61.18 mm  x 3.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 9.27x1.14 Kalrez-FFKM - 75 Shore A - Black - SES-726359 O-ring Black9.27 mm  x 1.14 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 166.7x7 Kalrez-FFKM - 75 Shore A - Black - SES-564381 O-ring Black166.8 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 56.79x2.92 Kalrez-FFKM - 75 Shore A - Black - SES-575477 O-ring Black56.80 mm  x 2.92 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 7.92x2.39 Kalrez-FFKM - 75 Shore A - Black - SES-726279 O-ring Black7.92 mm  x 2.39 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 284x2.5 Kalrez-FFKM - 75 Shore A - Black - SES-730773 O-ring Black284 mm  x 2.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 124.7x7 Kalrez-FFKM - 75 Shore A - Black - SES-563844 O-ring Black124.8 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 36.2x2 Kalrez-FFKM - 75 Shore A - Black - SES-574941 O-ring Black36.3 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 208x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-577189 O-ring Black208 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black51.100 mm  x 2.24 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 540x6 Kalrez-FFKM - 75 Shore A - Black - SES-578740 O-ring Black541 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 221.6x7 Kalrez-FFKM - 75 Shore A - Black - SES-564832 O-ring Black221.7 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 82.5x2 Kalrez-FFKM - 75 Shore A - Black - SES-575925 O-ring Black82.6 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.01x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-726718 O-ring Black15.02 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 345.34x6.35 Kalrez-FFKM - 75 Shore A - Black - SES-731217 O-ring Black345.35 mm  x 6.35 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 7.66x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-560564 O-ring Black7.66 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 220x3 Kalrez-FFKM - 75 Shore A - Black - SES-564821 O-ring Black221 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 77.5x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-575843 O-ring Black77.6 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15x1.95 Kalrez-FFKM - 75 Shore A - Black - SES-726707 O-ring Black15 mm  x 1.95 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 333.4x8.6 Kalrez-FFKM - 75 Shore A - Black - SES-731135 O-ring Black333.5 mm  x 8.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 131x2 Kalrez-FFKM - 75 Shore A - Black - SES-563940 O-ring Black131 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 38.7x2.7 Kalrez-FFKM - 75 Shore A - Black - SES-575034 O-ring Black38.8 mm  x 2.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 2.7x1.3 Kalrez-FFKM - 75 Shore A - Black - SES-725834 O-ring Black2.7 mm  x 1.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 224x6.3 Kalrez-FFKM - 75 Shore A - Black - SES-730350 O-ring Black225 mm  x 6.3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 215.27x6.99 Kalrez-FFKM - 75 Shore A - Black - SES-564790 O-ring Black215.28 mm  x 6.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 80.4x5.8 Kalrez-FFKM - 75 Shore A - Black - SES-575886 O-ring Black80.5 mm  x 5.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 337x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-577910 O-ring Black338 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 87x8 Kalrez-FFKM - 75 Shore A - Black - SES-728783 O-ring Black87 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 75.82x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-563031 O-ring Black75.83 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 20x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-574132 O-ring Black20 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 505x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-578583 O-ring Black505 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black131 mm  x 1.58 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 225.5x5 Kalrez-FFKM - 75 Shore A - Black - SES-564865 O-ring Black225.6 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 84.5x1.2 Kalrez-FFKM - 75 Shore A - Black - SES-575959 O-ring Black84.6 mm  x 1.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon

To provide even greater thermal stability and solvent resistance, tetrafluoroethylene (TFE) containing fluoroelastomer terpolymers were introduced in 1959. The latest FKM polymers have a much broader fluids resistance profile than standard fluoroelastomers, and are able to withstand strong bases and ketones as well as aromatic hydrocarbons, oils, acids, and steam. In 1975 a new fluoroelastomer family was introduced by Asahi Glass Co., FEPM, based on an alternating copolymer of TFE and propylene. It is marketed under the trade name AFLAS®.

The chemical resistance and high-temperature stability is due to the bulkiness of the fluorine atoms, shielding the polymer backbone and carbon-fluor bond from attack, and the high bonding energy of the carbon-fluor bond.

FFKM gives the indication for the types of improved properties for different applications.


Material: Fluorocarbon elastomers
Fluorocarbon rubber is an elastomer

Fluorocarbon elastomers are highly fluorinated carbon-based polymers that are used in applications that must withstand aggressive chemical and ozone attacks.

In general, with increasing fluorine content, the resistance to chemical attack is improved, while the low temperature properties decrease. However, there are special quality fluorocarbons that do have a high fluorine content at low temperature properties.

Good qualities:

  • Chemical compatibility
  • Good temperature resistance
  • Low compression setting
  • Resistant to minerals, oils and fats
  • Good gas tightness
  • Excellent resistance to non-polar media
  • Excellent weather and aging stability
  • Very good oxygen and ozone stability
  • Operating temperature range from -26 °C to +205/230 °C (-15 °F to +400/440 °F)
  • When used briefly, the material can tolerate even higher temperatures
  • Special compounds with improved chemical resistance are available
  • Brake fluids based on glycol
  • Low molecular weight organic acids

FFKM
FFKM are perfluoroelastomeric compounds that contain an even greater amount of fluorine than FKMO fluoroelastomers.

FFKM have an improved resistance to high temperatures and chemicals and are even resistant to environments where oxygen plasma is present for many hours. Certain grades have a maximum continuous service temperature of 327 °C / 621 °F. They are often used to make o-rings and gaskets that are used to make o-rings and gaskets that are used in applications where contact with hydrocarbons or highly corrosive liquids the case, or when a wide temperature range is encountered.

On this page we offer our range of N896 certified O-Rings. Search for your specific O-ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our N896 certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.