SCREW (P/N nas1221-3-e5) - New Surplus

The NAS1221-3-E5 is a steel countersunk machine screw with a 100-degree head designed for flush fastening in aircraft structures. Featuring UNJF 10-32 threads and an internal high-torque drive, this screw secures flush panels in airframe assemblies where aerodynamic contour must be maintained. Installation requires a matching countersink, proper thread engagement, and torque values per the applicable maintenance manual.

The countersunk design eliminates protruding fastener heads, critical for skin panels and access covers on general and commercial aircraft.

What is the SCREW (P/N nas1221-3-e5)?

The NAS1221-3-E5 is a steel countersunk machine screw with a 100-degree head designed for flush fastening in aircraft structures. Featuring UNJF 10-32 threads and an internal high-torque drive, this screw secures flush panels in airframe assemblies where aerodynamic contour must be maintained.

Does the nas1221-3-e5 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 nas1221-3-e5 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 nas1221-3-e5.

Can I order the nas1221-3-e5 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.