RETAINER,PACKING (P/N ms28774-012) - New, New Surplus
P/N: ms28774-012
Category: Studs, Inserts & Fastener Hardware
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.
Does the ms28774-012 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The RETAINER,PACKING conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the ms28774-012 manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the ms28774-012.
Can I order the ms28774-012 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The RETAINER,PACKING is available in: New, New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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