BOLT (P/N nas1221-3-3) - New Surplus

The NAS1221-3-3 is a flush-head bolt conforming to NAS1221 specifications for countersunk fastening in aircraft structures. Built from alloy steel with an internal high-torque drive, this bolt provides secure shear-loaded joints while maintaining aerodynamic surface continuity. The flush head design seats into prepared countersinks on skin panels and structural components, eliminating protrusions.

Installation requires torquing to NAS procedures per your aircraft maintenance manual, with proper countersink preparation essential for correct seating and load distribution.

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

The NAS1221-3-3 is a flush-head bolt conforming to NAS1221 specifications for countersunk fastening in aircraft structures. Built from alloy steel with an internal high-torque drive, this bolt provides secure shear-loaded joints while maintaining aerodynamic surface continuity.

Does the nas1221-3-3 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT 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 nas1221-3-3 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 nas1221-3-3.

Can I order the nas1221-3-3 in custom quantities?

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