RETAINER,PACKING (P/N ms28774-022) - New Surplus
P/N: ms28774-022
Category: Seals
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 6 Available |
Product Description
The MS28774-022 is a PTFE packing retainer (backup ring) that prevents O-ring extrusion in aircraft hydraulic and pneumatic systems. This single-turn ring installs behind the primary seal in hydraulic actuators, supporting the O-ring under pressure cycling and temperature variations. Manufactured to Military Standard MS28774 per SAE AS8791 specifications, it maintains seal integrity in high-pressure applications.
Install per component maintenance manual requirements and verify fitment in the aircraft Illustrated Parts Catalog before assembly.
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.
Frequently Asked Questions
What is the RETAINER,PACKING (P/N ms28774-022)?
The MS28774-022 is a PTFE packing retainer (backup ring) that prevents O-ring extrusion in aircraft hydraulic and pneumatic systems. This single-turn ring installs behind the primary seal in hydraulic actuators, supporting the O-ring under pressure cycling and temperature variations.
What material is the ms28774-022 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 RETAINER,PACKING meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28774-022 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 ms28774-022.
What is the shelf life of the ms28774-022?
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 ms28774-022.
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