This FFKM - FFPM O-Ring is 180x4mm and in the color Black. The Hardness of this O-ring 180x4 FFKM - FFPM - Norsok M710 - AED - Kalrez 0900 - 90 Shore A - Black - ORS69106 (Eqvuivalent) is 90 Shore A.The alternative names of the compound are FFPM – Dupont Kalrez and they are mostly produced by Evolast® - Chemraz® - Simriz® - Kalrez® - Spectrum - Triazinico - Isolast® - Parofluor® - Fluorez - Perlast® - HPSealing® - Perfluor® - Polymax. The O-ring is commonly used in and has an operating temperature range from -15 ºC to 280 ºC. O-rings 552403 are indicated as 69106 and have a DIN 3771 Size of 180x4. This item is equal to Dupont Kalrez 0900, Greene Tweed Chemraz 526, PPE Perlast G90D, Trelleborg Isolast J9510 and has an Norsok M710 - AED Approval. The chemical name of this Oring is Perfluoroelastomer.