The MS24665 Cotter Pin (Cadmium Plated Steel) is a precision-manufactured safety fastener conforming to the MS24665 military specification, formerly designated AN380. Designed for use in aircraft and aerospace applications, these cotter pins provide reliable secondary locking for castellated nuts, clevis pins, and other fasteners where vibration resistance and positive retention are critical.
Manufactured from cadmium plated steel, these pins offer excellent corrosion resistance and are suitable for use in demanding aviation maintenance environments. Each pin is produced to strict dimensional tolerances to ensure consistent fit and performance across a wide range of airframe and powerplant applications.
Key Features
- Conforms to MS24665 military specification (formerly AN380)
- Cadmium plated steel construction for corrosion resistance
- Suitable for airframe, powerplant, and general aviation maintenance
- Available in multiple dash numbers to suit a range of pin diameters and lengths
- Compliant with standard aviation maintenance practices (AMM/IPC references)
Available Sizes
| SKU | AN380 Dash No. | Dia & Length |
| MS24665-132 | -2-2 | 1/16 x 1/2 |
| MS24665-134 | -2-3 | 1/16 x 3/4 |
| MS24665-136 | -2-4 | 1/16 x 1 |
| MS24665-138 | -2-5 | 1/16 x 1-1/4 |
| MS24665-140 | -2-6 | 1/16 x 1-1/2 |
| MS24665-143 | -2-8 | 1/16 x 2 |
Select your required dash number from the variant selector above. If you require a quantity or size not listed, please contact us.
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