RETAINER,PACKING (P/N ms28774-117) - New Surplus
P/N: ms28774-117
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 MS28774-117 is a PTFE packing retainer (backup ring) manufactured to Military Standard MS28774 per SAE AS8791. This single-turn, scarf-cut design prevents O-ring extrusion in aircraft hydraulic and pneumatic seals operating under high pressure. Installed in O-ring grooves of hydraulic actuators and system components, the retainer supports seal integrity by containing the elastomer within the groove.
Install in MIL-G-5514 type grooves per aircraft maintenance manual specifications, confirming dash size compatibility in the 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 ms28774-117)?
The MS28774-117 is a PTFE packing retainer (backup ring) manufactured to Military Standard MS28774 per SAE AS8791. This single-turn, scarf-cut design prevents O-ring extrusion in aircraft hydraulic and pneumatic seals operating under high pressure.
What material is the ms28774-117 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 ms28774-117 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 ms28774-117.
What is the shelf life of the ms28774-117?
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 ms28774-117.
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