P/N: ms28777-8
Category: Seals
Flat-rate shipping. Choose Ground or a faster service at checkout.
Flat-rate shipping covers most parts. If your order turns out to need freight or special handling, we'll contact you with the updated shipping cost before it ships. You can pay the difference or cancel for a full refund. International buyers pay any duties and import taxes.
| Condition | Price | Stock |
|---|---|---|
| New Surplus | $0.75 | 50 Available |
The MS28777-8 is a metal packing retainer conforming to Military Standard MS28777 specifications. This backup washer supports soft sealing elements in hydraulic tube-fitting assemblies, positioning behind O-rings or packing to prevent extrusion into the gland cavity. Installed at hydraulic unions and fluid connections, it maintains seal integrity under pressure cycling and thermal variations.
The retainer follows MS28777 geometry requirements for precise gland fit. Installation should follow component and aircraft maintenance manual specifications.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
The MS28777-8 is a metal packing retainer conforming to Military Standard MS28777 specifications. This backup washer supports soft sealing elements in hydraulic tube-fitting assemblies, positioning behind O-rings or packing to prevent extrusion into the gland cavity.
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 RING,METAL meets aviation specifications for its intended use. Contact us for specific material data.
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 ms28777-8.
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 ms28777-8.