MS24665-22 Cotter Pin is a military standard aircraft fastening component designed to provide a reliable secondary locking method for castellated nuts, clevis pins, bolts, and other mechanical assemblies subject to vibration and dynamic loading. This package contains 100 corrosion-resistant cotter pins suitable for aviation maintenance, repair, and production applications.

Manufactured in accordance with the MS24665 specification, this cotter pin features a nominal 1/32 in. diameter and 1/2 in. overall length. It is commonly produced from passivated corrosion-resistant stainless steel, providing excellent resistance to corrosion while maintaining the strength and flexibility required for repeated installation in approved maintenance procedures.

Once inserted through a pre-drilled hole in a bolt or pin, the prongs are bent in opposite directions to prevent the fastener from loosening or disengaging during aircraft operation. Cotter pins play a critical role in maintaining the integrity of landing gear, flight control linkages, engine accessories, hydraulic actuators, and numerous other airframe and powerplant assemblies where positive mechanical retention is required.

As a standard aviation hardware item, the MS24665-22 cotter pin is intended for replacement whenever removed during maintenance to ensure continued reliability and compliance with accepted aircraft maintenance practices.

Key Features

- Part Number: MS24665-22
- Manufacturer: Military Standard (MS) / Approved Aviation Hardware Manufacturer
- Component: Cotter Pin (Split Pin)
- Material: Corrosion-resistant stainless steel, passivated
- Nominal Size: 1/32 in. diameter × 1/2 in. length
- Function: Secondary mechanical locking device for castellated nuts, clevis pins, and drilled fasteners
- Pack Quantity: 100 pieces
- Suitable for aircraft structural, landing gear, engine, and flight control applications requiring secure fastener retention