SEAL (P/N Q4339) - New Surplus

The Q4339 is an elastomeric seal for fluid retention and contaminant exclusion at aircraft component interfaces. This O-ring maintains system pressure in hydraulic tube fitting bosses and similar static joint applications. Sized to SAE AS568 specifications for precision fit and reliable performance.

Installation requires compatible lubricant per the aircraft maintenance manual or component technical data, with size verification in the Illustrated Parts Catalog before assembly. Suitable for general aviation and commercial aircraft hydraulic systems.

What is the SEAL (P/N Q4339)?

The Q4339 is an elastomeric seal for fluid retention and contaminant exclusion at aircraft component interfaces. This O-ring maintains system pressure in hydraulic tube fitting bosses and similar static joint applications.

What material is the Q4339 made from?

Aircraft seals and O-rings are manufactured from various elastomers including nitrile (Buna-N), fluorocarbon (Viton), silicone, and PTFE depending on the application. The SEAL meets aviation specifications for its intended use. Contact us for specific material data.

Can I order the Q4339 in bulk quantities?

Yes, we stock seals and gaskets in quantity and offer bulk pricing. Submit a Request for Quote (RFQ) for volume orders, or call (904) 998-9101 for immediate quantity availability on the Q4339.

What is the shelf life of the Q4339?

Elastomeric seals have manufacturer-specified shelf lives that vary by material and storage conditions. We follow industry standards for cure date tracking and proper climate-controlled storage. Contact us for shelf life details on the Q4339.