RETAINER,PACKING (P/N ms28774-012) - New, New Surplus
P/N: ms28774-012
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 | 25 Available |
| New Surplus | 8 Available |
Product Description
The MS28774-012 is a packing retainer (backup ring) that prevents O-ring extrusion in pressurized hydraulic glands. This metal support ring installs adjacent to the primary seal within the groove, providing radial containment under high pressure. Commonly used in aircraft hydraulic actuators and fluid system components, the retainer mounts on the low-pressure side of the seal assembly per component maintenance manuals.
Conforms to MS28774 specifications per SAE-AS8791 standards for aerospace reliability.
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 ms28774-012)?
The MS28774-012 is a packing retainer (backup ring) that prevents O-ring extrusion in pressurized hydraulic glands. This metal support ring installs adjacent to the primary seal within the groove, providing radial containment under high pressure.
What material is the ms28774-012 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 ms28774-012 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 ms28774-012.
What is the shelf life of the ms28774-012?
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 ms28774-012.