WASHER-HYDRALIC, PACKING BACKU (P/N ms28777-10) - New Surplus

The MS28777-10 is a leather hydraulic packing back-up washer conforming to MS28777 and MIL-W-5521 specifications. This washer supports the primary packing seal in aircraft hydraulic tube fittings, maintaining sealing integrity under system pressure. Installed adjacent to the packing element in fitting assemblies, it prevents extrusion and helps distribute load across the seal interface.

Used in fuel, hydraulic, and pneumatic systems across general and commercial aircraft. Installation must follow the applicable aircraft maintenance manual or component technical data.

What is the WASHER-HYDRALIC, PACKING BACKU (P/N ms28777-10)?

The MS28777-10 is a leather hydraulic packing back-up washer conforming to MS28777 and MIL-W-5521 specifications. This washer supports the primary packing seal in aircraft hydraulic tube fittings, maintaining sealing integrity under system pressure.

What conditions is the ms28777-10 available in?

The ms28777-10 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the ms28777-10?

The ms28777-10 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the ms28777-10?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.