RETAINER, PACKING BACKUP (P/N ms28774-332) - New Surplus
P/N: ms28774-332
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 | 2 Available |
Product Description
The MS28774-332 is a PTFE packing backup retainer designed to prevent O-ring extrusion under hydraulic pressure. This back-up ring installs adjacent to the O-ring in aircraft hydraulic glands, providing structural support and maintaining seal integrity in high-pressure applications. Manufactured to MS28774 specifications with single-turn scarf-cut dimensions for precise fit.
Installation requires proper orientation per component maintenance manual and AS4716/AS568 gland guidance to ensure effective sealing performance in aircraft hydraulic systems.
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 BACKUP (P/N ms28774-332)?
The MS28774-332 is a PTFE packing backup retainer designed to prevent O-ring extrusion under hydraulic pressure. This back-up ring installs adjacent to the O-ring in aircraft hydraulic glands, providing structural support and maintaining seal integrity in high-pressure applications.
What material is the ms28774-332 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 BACKUP meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the ms28774-332 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 ms28774-332.
What is the shelf life of the ms28774-332?
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 ms28774-332.
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