RETAINER,PACKING (P/N ms28774-121) - New Surplus
P/N: ms28774-121
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 | 19 Available |
Product Description
The MS28774-121 is a PTFE packing retainer (backup ring) conforming to MS28774 specifications. This component prevents O-ring extrusion in hydraulic sealing glands by providing structural support behind the primary packing element. Installed in the groove behind an O-ring within aircraft hydraulic actuators and fluid system components, the retainer maintains seal integrity under pressure cycling and temperature variations.
Installation follows MS28774 gland dimensions and applicable OEM maintenance manuals to ensure proper positioning and sealing performance.
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 ms28774-121)?
The MS28774-121 is a PTFE packing retainer (backup ring) conforming to MS28774 specifications. This component prevents O-ring extrusion in hydraulic sealing glands by providing structural support behind the primary packing element.
What material is the ms28774-121 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 ms28774-121 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 ms28774-121.
What is the shelf life of the ms28774-121?
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 ms28774-121.
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