FFKM O-rings EN9LT

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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 286x10 Kalrez-FFKM - 90 Shore A - Black - SES-744025 O-ring Black286 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 380x20 Kalrez-FFKM - 90 Shore A - Black - SES-744678 O-ring Black380 mm  x 20 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 470x9 Kalrez-FFKM - 90 Shore A - Black - SES-745293 O-ring Black471 mm  x 9 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 88.9x8 Kalrez-FFKM - 90 Shore A - Black - SES-582439 O-ring Black88.10 mm  x 8 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 176x7 Kalrez-FFKM - 90 Shore A - Black - SES-583377 O-ring Black176 mm  x 7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 264x2 Kalrez-FFKM - 90 Shore A - Black - SES-583980 O-ring Black265 mm  x 2 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 368x4 Kalrez-FFKM - 90 Shore A - Black - SES-584488 O-ring Black368 mm  x 4 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 5x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-542891 O-ring Black5 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 531x10 Kalrez-FFKM - 90 Shore A - Black - SES-585127 O-ring Black532 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 19x1.5 Kalrez-FFKM - 90 Shore A - Black - SES-543658 O-ring Black19 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 1.91x0.74 Kalrez-FFKM - 90 Shore A - Black - SES-738983 O-ring Black1.91 mm  x 0.74 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 40x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-544427 O-ring Black40 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black83 mm  x 1.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 7.5x5 Kalrez-FFKM - 90 Shore A - Black - SES-739470 O-ring Black7.5 mm  x 5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 17.53x6.35 Kalrez-FFKM - 90 Shore A - Black - SES-740095 O-ring Black17.54 mm  x 6.35 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158.88x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-546497 O-ring Black158.89 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 39.5x3.25 Kalrez-FFKM - 90 Shore A - Black - SES-740946 O-ring Black39.6 mm  x 3.25 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 279.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-547376 O-ring Black279.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 474.4x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-548240 O-ring Black474.5 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 77.5x2.5 Kalrez-FFKM - 90 Shore A - Black - SES-741822 O-ring Black77.6 mm  x 2.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 14.85x3 Kalrez-FFKM - 90 Shore A - Black - SES-580278 O-ring Black14.86 mm  x 3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 122x1.3 Kalrez-FFKM - 90 Shore A - Black - SES-742577 O-ring Black123 mm  x 1.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 183x10 Kalrez-FFKM - 90 Shore A - Black - SES-743260 O-ring Black183 mm  x 10 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 253x6 Kalrez-FFKM - 90 Shore A - Black - SES-743784 O-ring Black253 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 298x6 Kalrez-FFKM - 90 Shore A - Black - SES-744100 O-ring Black299 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 406x2.62 Kalrez-FFKM - 90 Shore A - Black - SES-744841 O-ring Black406 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 496.9x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-745485 O-ring Black496.10 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.25x1.27 Kalrez-FFKM - 90 Shore A - Black - SES-543121 O-ring Black9.25 mm  x 1.27 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 32x6 Kalrez-FFKM - 90 Shore A - Black - SES-544156 O-ring Black32 mm  x 6 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 55.2x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-544885 O-ring Black55.3 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black129.6 mm  x 6.99 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 243x5.3 Kalrez-FFKM - 90 Shore A - Black - SES-547145 O-ring Black243 mm  x 5.3 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 9.4x1 Kalrez-FFKM - 90 Shore A - Black - SES-543126 O-ring Black9.4 mm  x 1 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.05x1.75 Kalrez-FFKM - 90 Shore A - Black - SES-544190 O-ring Black33.06 mm  x 1.75 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black66.35 mm  x 2.62 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 158.1x5.33 Kalrez-FFKM - 90 Shore A - Black - SES-546486 O-ring Black158.2 mm  x 5.33 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
Placeholder O-ring Black291.5 mm  x 3.53 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 499.3x5.7 Kalrez-FFKM - 90 Shore A - Black - SES-548313 O-ring Black499.4 mm  x 5.7 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 18.2x3.5 Kalrez-FFKM - 90 Shore A - Black - SES-580455 O-ring Black18.3 mm  x 3.5 mm FFKM - FFPM90 Shore A Jaicon-bekijk icon
O-Ring 33.7x3.7 Kalrez-FFKM - 90 Shore A - Black - SES-581264 O-ring Black33.8 mm  x 3.7 mm FFKM - FFPM90 Shore A Jaicon-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 N9LT 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 N9LT certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.