WASHER, FLAT (P/N ms28777-4) - New Surplus
P/N: ms28777-4
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 | 16 Available |
Product Description
The MS28777-4 is a leather flat backup washer designed to support and retain seals in hydraulic fittings. This 1/4-inch tube size washer installs adjacent to O-rings or preformed packing to prevent seal extrusion under system pressure. Manufactured per MIL-W-5521 military specifications, the leather material provides reliable compression and support in hydraulic glands.
Installation follows the applicable component maintenance manual, with proper sizing verification to the MS28777 specification ensuring correct fit and seal integrity.
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 WASHER, FLAT (P/N ms28777-4)?
The MS28777-4 is a leather flat backup washer designed to support and retain seals in hydraulic fittings. This 1/4-inch tube size washer installs adjacent to O-rings or preformed packing to prevent seal extrusion under system pressure.
Does the ms28777-4 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The WASHER, FLAT 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 ms28777-4 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 ms28777-4.
Can I order the ms28777-4 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER, FLAT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.
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