SPLIT PIN (P/N sp28-n-32) - New Surplus

The sp28-n-32 is a steel split pin (cotter pin) that serves as a positive-locking device for slotted nuts in aircraft assemblies. This fastener is inserted through aligned holes in a bolt and castellated nut, then the legs are bent to prevent rotation and accidental loosening. Standardized under AN380 and NASM24665 specifications, the split pin is commonly used in control linkages, landing gear, and structural connections where reliable mechanical locking is required.

Installation follows FAA AC 43.13-1B practices. Verify compatibility with your aircraft's Illustrated Parts Catalog before use.

What is the SPLIT PIN (P/N sp28-n-32)?

The sp28-n-32 is a steel split pin (cotter pin) that serves as a positive-locking device for slotted nuts in aircraft assemblies. This fastener is inserted through aligned holes in a bolt and castellated nut, then the legs are bent to prevent rotation and accidental loosening.

Does the sp28-n-32 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SPLIT PIN 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 sp28-n-32 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 sp28-n-32.

Can I order the sp28-n-32 in custom quantities?

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