RETAINER,PACKING (P/N ms28774-013) - New Surplus
P/N: ms28774-013
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 | 21 Available |
Product Description
The MS28774-013 is a PTFE packing retainer (backup ring) that prevents O-ring extrusion in hydraulic and pneumatic fluid power systems. This single-turn, scarf-cut geometry component conforms to SAE AS8791/MIL-R-8791 specifications. Installed adjacent to the extrusion gap and opposite system pressure, the retainer supports the primary O-ring seal in glands operating under high pressure differentials.
Used in aircraft hydraulic actuators, landing gear systems, and engine components where seal integrity is critical. Installation requires verification of gland dimensions per MIL-G-5514 and compliance with applicable aircraft maintenance manual procedures.
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 ms28774-013)?
The MS28774-013 is a PTFE packing retainer (backup ring) that prevents O-ring extrusion in hydraulic and pneumatic fluid power systems. This single-turn, scarf-cut geometry component conforms to SAE AS8791/MIL-R-8791 specifications.
What material is the ms28774-013 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 ms28774-013 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 ms28774-013.
What is the shelf life of the ms28774-013?
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 ms28774-013.
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