RETAINER (1/50) (P/N ms28773-3) - New Surplus

The MS28773-3 is a PTFE packing retainer for tube fittings conforming to Military Standard MS28773. This component seats and retains an O-ring or packing element within the fitting bore, preventing seal extrusion under hydraulic pressure. Sized for 1/50-inch applications, the retainer maintains seal integrity in high-pressure fluid systems.

Installation requires verification of dash-size compatibility with the aircraft maintenance manual and applicable component drawings. PTFE construction provides chemical resistance and low friction characteristics essential for reliable hydraulic system performance.

What is the RETAINER (1/50) (P/N ms28773-3)?

The MS28773-3 is a PTFE packing retainer for tube fittings conforming to Military Standard MS28773. This component seats and retains an O-ring or packing element within the fitting bore, preventing seal extrusion under hydraulic pressure.

Does the ms28773-3 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The RETAINER (1/50) 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 ms28773-3 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 ms28773-3.

Can I order the ms28773-3 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The RETAINER (1/50) is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.