NUT:HEX STEEL (P/N 28-an315-4r) - New Surplus

The AN315-4R is a plain hex steel nut designed to secure 1/4-28 UNF right-hand threaded fasteners in aircraft structural and systems assemblies. This steel construction nut conforms to AN-series hardware standards for reliable fastening in high-vibration environments. Installed on clean, undamaged threads and torqued per aircraft maintenance manual specifications, it provides dependable clamping force across fuselage joints, wing attachments, and control surface installations.

Verify applicability in your aircraft's Illustrated Parts Catalog before replacement.

What is the NUT:HEX STEEL (P/N 28-an315-4r)?

The AN315-4R is a plain hex steel nut designed to secure 1/4-28 UNF right-hand threaded fasteners in aircraft structural and systems assemblies. This steel construction nut conforms to AN-series hardware standards for reliable fastening in high-vibration environments.

Does the 28-an315-4r meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT:HEX STEEL 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 28-an315-4r 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 28-an315-4r.

Can I order the 28-an315-4r in custom quantities?

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