RETAINER (P/N ms28774-140) - New Surplus
P/N: ms28774-140
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 | 17 Available |
Product Description
The MS28774-140 is a PTFE backup ring designed to support O-ring seals and prevent extrusion in hydraulic systems. This single-turn, scarf-cut retainer conforms to SAE AS8791 material specifications and MIL-G-5514 groove standards. Installed adjacent to the primary O-ring seal in actuators and hydraulic components, it protects against pressure-induced extrusion that can compromise seal integrity.
The PTFE construction provides low friction and chemical resistance in high-pressure hydraulic environments. Proper installation per the applicable component maintenance manual ensures reliable seal 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 (P/N ms28774-140)?
The MS28774-140 is a PTFE backup ring designed to support O-ring seals and prevent extrusion in hydraulic systems. This single-turn, scarf-cut retainer conforms to SAE AS8791 material specifications and MIL-G-5514 groove standards.
Does the ms28774-140 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 ms28774-140 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 ms28774-140.
Can I order the ms28774-140 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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