ČSN EN 3049

Aerospace series - O-rings, in fluorocarbon rubber (FKM), low compression set - Hardness 80 IRHD

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Detail information

Designation: ČSN EN 3049

Publication date: 01/05/2026

Pages: 16

Country: Czech technical standard

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Anotation

This document specifies the characteristics of O-rings in fluorocarbon rubber (FKM), low compression set, hardness 80 IRHD, for aerospace applications.
They are intended to be used in air, mineral / synthetic oil and fuel systems.
Operating conditions - Temperature:
a) Continuous operation: -20 °C to +225 °C;
b) Static applications minimum temperature of use: -50 °C.
Limitation: not used with phosphoric ester type hydraulic fluids (permanent or temporary immersion)

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