RETAINER,PACKING (P/N ms28773-16) - New Surplus

The MS28773-16 is a packing retainer (back-up ring) that prevents O-ring extrusion under high pressure in hydraulic and pneumatic systems. This metal ring installs adjacent to the seal in tube-fitting glands, supporting the O-ring and containing it within the component cavity during operation. Manufactured to Military Standard MS28773 per SAE AS8791, the retainer maintains seal integrity in aircraft hydraulic lines and fluid system connections.

Installation follows component maintenance manual specifications for proper positioning and orientation.

What is the RETAINER,PACKING (P/N ms28773-16)?

The MS28773-16 is a packing retainer (back-up ring) that prevents O-ring extrusion under high pressure in hydraulic and pneumatic systems. This metal ring installs adjacent to the seal in tube-fitting glands, supporting the O-ring and containing it within the component cavity during operation.

Does the ms28773-16 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The RETAINER,PACKING 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 ms28773-16 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 ms28773-16.

Can I order the ms28773-16 in custom quantities?

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