NUT (P/N a1778-8z-1d) - New Surplus

The a1778-8z-1d is a steel sheet-spring nut for #8 screws in aircraft sheet-metal assemblies. This Tinnerman-style fastener features a flat spring design that snaps over panel edges and holes, capturing the screw without requiring access to the reverse side. Conforming to NAS446-4 specifications, it measures approximately 0.625 x 0.437 x 0.028 inches.

Commonly used on inspection panels and access covers paired with AN530/AN531 screws for blind assembly installations. Installation involves positioning the nut over the hole and tightening per aircraft maintenance manual procedures.

What is the NUT (P/N a1778-8z-1d)?

The a1778-8z-1d is a steel sheet-spring nut for #8 screws in aircraft sheet-metal assemblies. This Tinnerman-style fastener features a flat spring design that snaps over panel edges and holes, capturing the screw without requiring access to the reverse side.

Does the a1778-8z-1d meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT 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 a1778-8z-1d 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 a1778-8z-1d.

Can I order the a1778-8z-1d in custom quantities?

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