SCREW (P/N std1856) - New Surplus

The std1856 is a hex-head screw with 1/4-20 threads conforming to Lycoming factory standard STD-1856. This fastener secures engine components and accessories in Lycoming powerplant assemblies. Commonly used for mounting brackets, control linkages, and accessory hardware on Lycoming engines.

Installation requires torque specification per the applicable Lycoming maintenance manual and FAA AC 43.13 guidance. Maintain proper parts traceability documentation for all fastening work on certificated aircraft.

What is the SCREW (P/N std1856)?

The std1856 is a hex-head screw with 1/4-20 threads conforming to Lycoming factory standard STD-1856. This fastener secures engine components and accessories in Lycoming powerplant assemblies.

Does the std1856 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW 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 std1856 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 std1856.

Can I order the std1856 in custom quantities?

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