RETAINER,PACKING (P/N ms28773-06) - New, New Surplus

The ms28773-06 is a PTFE packing retainer (back-up ring) conforming to MS28773 specifications for aircraft hydraulic and pneumatic fittings. This component supports an O-ring and prevents extrusion under system pressure in tube fitting glands. The scarf-cut design enables straightforward installation into component grooves.

Positioned directly behind the O-ring seal, the retainer maintains pressure integrity in hydraulic lines, fuel systems, and pneumatic circuits across general aviation and commercial aircraft. Install per component maintenance manual and applicable MS/SAE standards.

What is the RETAINER,PACKING (P/N ms28773-06)?

The ms28773-06 is a PTFE packing retainer (back-up ring) conforming to MS28773 specifications for aircraft hydraulic and pneumatic fittings. This component supports an O-ring and prevents extrusion under system pressure in tube fitting glands.

Does the ms28773-06 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 ms28773-06 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 ms28773-06.

Can I order the ms28773-06 in custom quantities?

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