Eastern Seals UK - Supplier of Quality Sealing Products

Aerospace, Military and defence

Aerospace, Military and Defence high specification seal solutions

Eastern Seals are the UK and European Distributor for Precix®, a major provider of high-specification components for the demanding environments of Aerospace and Defence Applications. Precix® is certified to AS9100 and AS7115 with ISO/IEC ISO17025:1999 Material Laboratory.


These documents (Standards) describe various sizes and materials used mainly in the Aerospace, Defence and Military Industries. These Standards usually have a suffix such as MIL, MIL-R, AS, AMS.

We supply to many of these specifications.

Please download our latest compound listing here – Aerospace Specification Chart.

Sealing Applications

O-Rings and gaskets are used for static sealing in various parts of the aero engines. This includes the gearbox, air, oil and fuel systems.
Fluorocarbon (Viton/FKM) is commonly used in these applications as well as other derivatives of Viton/FKM such as Type GF.

Sealing technology has advanced substantially in order to meet the demands of new aero engines where extreme temperatures are encountered. In this respect, Perfluoroelastomers (FFKM) have been developed to suit these applications.

Landing Gear Assembly Sealing

Wheel & Brake.

Flight Control Sealing

Fuel pump, controls, lines, connectors.
Auxiliary Power Units (APU) Seals.

Engine Sealing

Fuel lines, connectors.


Many MIL / AS Standards require special packaging for parts. For example several have a requirement for individual packing and printed bags. Eastern Seals are able to supply to these standards if required. Our facility operates a special purpose bagging machine area.

Free delivery on web orders over £100.00*

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