Top 4 Questions About AS1895 Metal Seals

An aircraft is made of many critical systems - all need to be manufactured to stringent specifications and according to industry regulations. There are sealing and material solutions that are often used due to their safety and reliability. AS1895 metal seals are one of these aerospace-grade components. While these seals may be considered as “standard,” their engineering goes far beyond that, i.e., engineered geometry, material selection, and performance verification. The seals are designed to ensure leak‑tight, high‑reliability joint sealing, primarily in bleed‑air management systems. Read on to see the top 4 questions that answer what you need to know about these metal seals.

AS1895/7 and AS1895/23 seals are used in:

• Aircraft engine bleed air systems

• High‑pressure air ducting

• Commercial and military aircraft pneumatic systems

• AS1895/7: These Metal E-Seals are designed for 100% springback. 

• AS1895/23: These modified Metal E-Seals are designed for 100% springback and superior conformity to low profile /23 flanges.

Both AS1895/7 and AS1895/23 metal seals are manufactured from Inconel 718, which is a high‑temperature nickel alloy and a solution that is heat‑hardened per AMS5596 (aerospace manufacturing specification).

Both AS1895/7 and AS1895/23 seals can withstand temperatures up to +1200°F (+650°C), as defined by the AS1895 aerospace joint system SAE standard.