BOLT, CSK HD (P/N nas7503-3) - New Surplus

The NAS7503-3 is a countersunk head bolt manufactured from A-286 corrosion-resistant steel per AMS 5731/5737 specifications. This close-tolerance fastener features a 100° flush head and 10-32 UNJF threads for high-strength structural joints in aircraft airframes. Designed to install flush with the surface, the bolt requires precision reamed holes and torque application per NAS or aircraft maintenance manual specifications.

Commonly used in airframe skin-to-frame connections where flush fastening is critical for aerodynamic integrity and structural performance.

What is the BOLT, CSK HD (P/N nas7503-3)?

The NAS7503-3 is a countersunk head bolt manufactured from A-286 corrosion-resistant steel per AMS 5731/5737 specifications. This close-tolerance fastener features a 100° flush head and 10-32 UNJF threads for high-strength structural joints in aircraft airframes.

Does the nas7503-3 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT, CSK HD 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 nas7503-3 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 nas7503-3.

Can I order the nas7503-3 in custom quantities?

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