MS Hardware Decoder
Decode MS (Military Standard) aircraft hardware part numbers. Supports solid rivets, self-locking nuts, cotter pins, machine screws, washers, and tinnerman nuts.
Type or paste a part number. It decodes live as you type.
Quick examples:
Supported MS Part Families
| Part Family | Description |
|---|---|
| MS20470 | Universal (round) head solid rivet |
| MS20426 | 100° countersunk head solid rivet |
| MS21042 | Self-locking nut, thin, all-metal |
| MS21043 | Self-locking nut, standard, all-metal |
| MS24665 | Cotter pin (safety pin) |
| MS35206 | Phillips pan head machine screw |
| MS35207 | Phillips flat head machine screw |
| MS35333 | Flat washer |
| MS35335 | Lock washer (split) |
| MS51957 | Tinnerman / speed nut |
Important Disclaimer
This tool is provided for educational and reference purposes only. Always verify all calculations against FAA-approved maintenance manuals, aircraft documentation, and applicable regulations. Never use web-based tools as the sole basis for airworthiness decisions.