NBN EN 3049:2025

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

ACTIVE

About this standard

Languages
German, English and French
Type
NBN
Standards committee
ASD-STAN (Aerospace)
Status
ACTIVE
Publication date
25 December 2025
Replaces
NBN EN 3049:1998
ICS Code
49.080 (Aerospace fluid systems and components)
Withdrawn Date
Price
€ 58,00

About this training

Summary

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).