PIN,COTTER (P/N ln94-40040) - New Surplus

The LN94-40040 is a corrosion-resistant steel cotter pin (split pin) designed to mechanically lock castellated nuts and fasteners against rotation. This split pin conforms to LN 94 aerospace standards and is installed through aligned holes in bolts, shafts, and control linkages across airframe systems. After insertion, the prongs are bent outward to prevent accidental withdrawal.

Installation follows FAA AC 43.13-1B guidance: select the largest cotter pin size that fits the hole, insert fully, and bend both prongs symmetrically. Verify part compatibility in your aircraft's Illustrated Parts Catalog before use.

What is the PIN,COTTER (P/N ln94-40040)?

The LN94-40040 is a corrosion-resistant steel cotter pin (split pin) designed to mechanically lock castellated nuts and fasteners against rotation. This split pin conforms to LN 94 aerospace standards and is installed through aligned holes in bolts, shafts, and control linkages across airframe systems.

Does the ln94-40040 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The PIN,COTTER 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 ln94-40040 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 ln94-40040.

Can I order the ln94-40040 in custom quantities?

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