RETAINER,PACKING (P/N ms28774-329) - New Surplus
P/N: ms28774-329
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 | 7 Available |
Product Description
The ms28774-329 is a single-turn PTFE back-up ring conforming to MS28774 specifications. This packing retainer supports O-rings in static sealing applications and prevents extrusion under pressure. Installed in gland grooves alongside MS28784 or MS29513 O-rings, the scarf-cut design maintains seal integrity in hydraulic, fuel, and pneumatic systems.
Material and geometry follow SAE AS8791 aerospace standards. Verify groove dimensions and installation requirements per the aircraft maintenance manual or component overhaul manual before service.
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 ms28774-329)?
The ms28774-329 is a single-turn PTFE back-up ring conforming to MS28774 specifications. This packing retainer supports O-rings in static sealing applications and prevents extrusion under pressure.
What material is the ms28774-329 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 ms28774-329 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 ms28774-329.
What is the shelf life of the ms28774-329?
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 ms28774-329.
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