UNION (P/N de115339-20) - New Surplus

The de115339-20 is a straight union fitting for aircraft hydraulic systems. This metal-to-metal connector joins two rigid tubes in-line using a 37° flared seal design, conforming to AN/MS union specifications. The fitting installs between flared tube ends with AN nuts and sleeves, creating a leak-free interface in hydraulic lines throughout the airframe.

Installation requires proper torque application per aircraft maintenance manual standards to ensure seal integrity under system pressure.

What is the UNION (P/N de115339-20)?

The de115339-20 is a straight union fitting for aircraft hydraulic systems. This metal-to-metal connector joins two rigid tubes in-line using a 37° flared seal design, conforming to AN/MS union specifications.

Does the de115339-20 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The UNION 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 de115339-20 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 de115339-20.

Can I order the de115339-20 in custom quantities?

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