NUT (P/N an310c4) - New Surplus

The AN310C4 is a castellated hex nut conforming to AN310 specification, manufactured from corrosion-resistant steel. Featuring 1/4-28 UNF threads and six radial slots, this nut accepts a cotter pin through a drilled bolt shank for positive locking. Used in aircraft assemblies subject to vibration and movement, it prevents fastener loosening during flight operations.

Installation requires torquing the nut to specification, aligning a slot with the bolt hole, inserting the cotter pin, and bending the pin ends per standard practice.

What is the NUT (P/N an310c4)?

The AN310C4 is a castellated hex nut conforming to AN310 specification, manufactured from corrosion-resistant steel. Featuring 1/4-28 UNF threads and six radial slots, this nut accepts a cotter pin through a drilled bolt shank for positive locking.

Does the an310c4 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 an310c4 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 an310c4.

Can I order the an310c4 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.