← Fastener catalog

AN / MS / NAS standard hardware

Bolts, nuts, washers, screws, cotter pins and safety wire. Each page identifies the source, what it establishes, and any unreadable or unverified fields. Manufacturer nut mappings are labeled separately from standard-sheet decodes.

10280 references · page 63 of 129

Standard hardware part numbers
Part numberSeriesHardware
MS24693-CB255MS24693Screws
MS24693-N255MS24693Screws
MS24693-NB255MS24693Screws
MS24693-S255MS24693Screws
MS24693-U255MS24693Screws
MS24693-255BMS24693Screws
MS24693-A256MS24693Screws
MS24693-B256MS24693Screws
MS24693-BB256MS24693Screws
MS24693-C256MS24693Screws
MS24693-CB256MS24693Screws
MS24693-N256MS24693Screws
MS24693-NB256MS24693Screws
MS24693-S256MS24693Screws
MS24693-U256MS24693Screws
MS24693-256BMS24693Screws
MS24693-A257MS24693Screws
MS24693-B257MS24693Screws
MS24693-BB257MS24693Screws
MS24693-C257MS24693Screws
MS24693-CB257MS24693Screws
MS24693-N257MS24693Screws
MS24693-NB257MS24693Screws
MS24693-S257MS24693Screws
MS24693-U257MS24693Screws
MS24693-257BMS24693Screws
MS24693-A258MS24693Screws
MS24693-B258MS24693Screws
MS24693-BB258MS24693Screws
MS24693-C258MS24693Screws
MS24693-CB258MS24693Screws
MS24693-N258MS24693Screws
MS24693-NB258MS24693Screws
MS24693-S258MS24693Screws
MS24693-U258MS24693Screws
MS24693-258BMS24693Screws
MS24693-A259MS24693Screws
MS24693-B259MS24693Screws
MS24693-BB259MS24693Screws
MS24693-C259MS24693Screws
MS24693-CB259MS24693Screws
MS24693-N259MS24693Screws
MS24693-NB259MS24693Screws
MS24693-S259MS24693Screws
MS24693-U259MS24693Screws
MS24693-259BMS24693Screws
MS24693-A260MS24693Screws
MS24693-B260MS24693Screws
MS24693-BB260MS24693Screws
MS24693-C260MS24693Screws
MS24693-CB260MS24693Screws
MS24693-N260MS24693Screws
MS24693-NB260MS24693Screws
MS24693-S260MS24693Screws
MS24693-U260MS24693Screws
MS24693-260BMS24693Screws
MS24693-A261MS24693Screws
MS24693-B261MS24693Screws
MS24693-BB261MS24693Screws
MS24693-C261MS24693Screws
MS24693-CB261MS24693Screws
MS24693-N261MS24693Screws
MS24693-NB261MS24693Screws
MS24693-S261MS24693Screws
MS24693-U261MS24693Screws
MS24693-261BMS24693Screws
MS24693-A262MS24693Screws
MS24693-B262MS24693Screws
MS24693-BB262MS24693Screws
MS24693-C262MS24693Screws
MS24693-CB262MS24693Screws
MS24693-N262MS24693Screws
MS24693-NB262MS24693Screws
MS24693-S262MS24693Screws
MS24693-U262MS24693Screws
MS24693-262BMS24693Screws
MS24693-A263MS24693Screws
MS24693-B263MS24693Screws
MS24693-BB263MS24693Screws
MS24693-C263MS24693Screws

Additional series recognized by the decoder

AN310, AN315, AN316 and AN320 nuts; NAS6203–6220, NAS6603–6620, NAS464 and NAS1103–1120 bolts; NAS514, NAS1096, NAS1189, NAS1351/1352 and NAS1580/1581. Unverified dash fields stay undecoded. Educational-only NAS bolt catalog rows are excluded from this index.

AN310AN315AN316AN320AN364AN365MS20364MS20365MS21042MS21043MS21044MS21045NAS1021NAS1022NAS1291NAS6203NAS6603NAS464NAS514

Which spec replaces which

What the public cancellation notices say for common pairs, and what they leave out.

FAA torque reference and conditions →

Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers