SLEEVE (P/N ms20819-4d) - New Surplus

The MS20819-4D is a Military Standard flared-tube sleeve designed for 37° AN fittings in -4 size (1/4-inch OD tubing). This aluminum sleeve supports the flare and maintains leak-tight joints in aircraft hydraulic systems. Install the sleeve over the tubing before connecting to an AN818 nut and mating fitting.

The part is interchangeable with AN819-4D and follows MS/SAE specifications for aircraft fluid line assemblies. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the SLEEVE (P/N ms20819-4d)?

The MS20819-4D is a Military Standard flared-tube sleeve designed for 37° AN fittings in -4 size (1/4-inch OD tubing). This aluminum sleeve supports the flare and maintains leak-tight joints in aircraft hydraulic systems.

Does the ms20819-4d meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SLEEVE 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 ms20819-4d 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 ms20819-4d.

Can I order the ms20819-4d in custom quantities?

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