RETAINER,PACKING (P/N ms28774-211) - New Surplus, New
P/N: ms28774-211
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 | 4 Available |
| New | 22 Available |
Product Description
The MS28774-211 is a PTFE packing retainer (backup ring) designed to prevent O-ring extrusion in pressurized aircraft hydraulic components. This scarf-cut, single-turn construction provides reliable static sealing performance by supporting the O-ring against pressure forces in the gland cavity. Conforms to MS28774 and SAE AS8791 specifications for aviation seal assemblies.
Install in the component gland per manufacturer guidance, ensuring correct size selection and proper orientation for effective backup support.
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 ms28774-211)?
The MS28774-211 is a PTFE packing retainer (backup ring) designed to prevent O-ring extrusion in pressurized aircraft hydraulic components. This scarf-cut, single-turn construction provides reliable static sealing performance by supporting the O-ring against pressure forces in the gland cavity.
What material is the ms28774-211 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 ms28774-211 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 ms28774-211.
What is the shelf life of the ms28774-211?
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 ms28774-211.
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