PACKING,PREFORMED (P/N ms28775-135) - New Surplus

The MS28775-135 is a preformed nitrile rubber O-ring conforming to Military Standard MS28775 specifications. This seal provides static sealing in aircraft hydraulic glands and actuator assemblies, preventing fluid leakage at component interfaces. Sized to AS568-135 dimensions, it operates reliably across the temperature range typical of hydraulic systems in general aviation and commercial aircraft.

Installation requires a clean, properly dimensioned groove matching the O-ring cross-section. Verify the part number against your aircraft's Illustrated Parts Catalog before fitment to ensure correct sizing and material compatibility with your hydraulic fluid.

What is the PACKING,PREFORMED (P/N ms28775-135)?

The MS28775-135 is a preformed nitrile rubber O-ring conforming to Military Standard MS28775 specifications. This seal provides static sealing in aircraft hydraulic glands and actuator assemblies, preventing fluid leakage at component interfaces.

What material is the ms28775-135 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 PACKING,PREFORMED meets aviation specifications for its intended use. Contact us for specific material data.

Can I order the ms28775-135 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 ms28775-135.

What is the shelf life of the ms28775-135?

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 ms28775-135.