RETAINER (P/N ms28774-334) - New Surplus
P/N: ms28774-334
Category: Fasteners & 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 Surplus | 20 Available |
Product Description
The MS28774-334 is a plastic packing retainer (backup ring) conforming to military standard MS28774 and SAE AS8791. This component prevents O-ring extrusion in high-pressure sealing applications by supporting the elastomer behind the primary seal. Installed in aerospace hydraulic and pneumatic actuators, valves, and system components.
The retainer sits in the component's groove per MS28774 dash-size geometry, protecting the O-ring from pressure-induced deformation. Installation follows the aircraft or component maintenance manual specifications for proper positioning and retention.
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 (P/N ms28774-334)?
The MS28774-334 is a plastic packing retainer (backup ring) conforming to military standard MS28774 and SAE AS8791. This component prevents O-ring extrusion in high-pressure sealing applications by supporting the elastomer behind the primary seal.
Does the ms28774-334 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The RETAINER 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 ms28774-334 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 ms28774-334.
Can I order the ms28774-334 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The RETAINER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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