BS EN 3049:2025 Aerospace Series O-rings in Fluorocarbon Rubber (FKM)

Introducing the BS EN 3049:2025, a comprehensive standard that sets the benchmark for O-rings made from fluorocarbon rubber (FKM) with a low compression set and a hardness of 80 IRHD. This standard is an essential resource for professionals in the aerospace industry, ensuring the highest quality and performance of O-rings used in critical applications.

Key Features and Benefits

The BS EN 3049:2025 standard is meticulously crafted to provide detailed specifications and guidelines for the production and application of O-rings in the aerospace sector. Here are some of the standout features and benefits:

• Material Excellence: The standard focuses on O-rings made from fluorocarbon rubber (FKM), known for its exceptional resistance to heat, chemicals, and oil. This makes it an ideal choice for aerospace applications where reliability and durability are paramount.
• Low Compression Set: One of the critical attributes of these O-rings is their low compression set, which ensures that they maintain their shape and sealing capabilities even under prolonged pressure and temperature variations.
• Optimal Hardness: With a hardness rating of 80 IRHD, these O-rings offer the perfect balance between flexibility and strength, providing a reliable seal without compromising on performance.
• Comprehensive Guidelines: The standard provides detailed instructions on the dimensions, tolerances, and testing methods, ensuring that the O-rings meet the stringent requirements of the aerospace industry.

Technical Specifications

For those who require precise technical details, the BS EN 3049:2025 standard offers a wealth of information:

• Standard Number: BS EN 3049:2025
• Pages: 16
• Release Date: January 8, 2026
• ISBN: 978 0 539 32119 7
• Status: Standard

Why Choose BS EN 3049:2025?

The aerospace industry demands the highest standards of quality and reliability, and the BS EN 3049:2025 standard delivers just that. By adhering to this standard, manufacturers and engineers can ensure that their O-rings meet the rigorous demands of aerospace applications, providing peace of mind and enhancing safety.

Whether you are involved in the design, production, or maintenance of aerospace components, the BS EN 3049:2025 standard is an invaluable tool that will help you achieve excellence in your work. Its detailed guidelines and specifications are designed to support the development of high-performance O-rings that can withstand the challenging conditions of aerospace environments.

Applications in the Aerospace Industry

O-rings are a critical component in many aerospace applications, providing essential sealing solutions in various systems and equipment. The BS EN 3049:2025 standard ensures that these O-rings are up to the task, offering reliable performance in:

• Fuel Systems: Ensuring leak-proof seals in fuel lines and tanks, even under extreme pressure and temperature conditions.
• Hydraulic Systems: Providing dependable sealing in hydraulic actuators and pumps, crucial for the operation of aircraft control surfaces.
• Engine Components: Withstanding the high temperatures and aggressive chemicals found in engine environments, maintaining integrity and performance.
• Cabin Pressurization: Ensuring airtight seals in cabin pressurization systems, contributing to passenger comfort and safety.

Conclusion

The BS EN 3049:2025 standard is a testament to the commitment to quality and excellence in the aerospace industry. By specifying the requirements for O-rings made from fluorocarbon rubber (FKM) with a low compression set and a hardness of 80 IRHD, this standard provides a reliable framework for producing high-performance sealing solutions.

Investing in the BS EN 3049:2025 standard is an investment in quality, safety, and performance. It is an essential resource for anyone involved in the aerospace sector, offering the guidance needed to produce O-rings that meet the highest standards of reliability and durability.

BS EN 3049:2025

This standard BS EN 3049:2025 Aerospace series — O-rings, in fluorocarbon rubber (FKM), low compression set — Hardness 80 IRHD is classified in these ICS categories:

• 49.080 Aerospace fluid systems and components

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).