← 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 48 of 129

Standard hardware part numbers
Part numberSeriesHardware
MS24693-CB49MS24693Screws
MS24693-N49MS24693Screws
MS24693-NB49MS24693Screws
MS24693-S49MS24693Screws
MS24693-U49MS24693Screws
MS24693-49BMS24693Screws
MS24693-A50MS24693Screws
MS24693-B50MS24693Screws
MS24693-BB50MS24693Screws
MS24693-C50MS24693Screws
MS24693-CB50MS24693Screws
MS24693-N50MS24693Screws
MS24693-NB50MS24693Screws
MS24693-S50MS24693Screws
MS24693-U50MS24693Screws
MS24693-50BMS24693Screws
MS24693-A51MS24693Screws
MS24693-B51MS24693Screws
MS24693-BB51MS24693Screws
MS24693-C51MS24693Screws
MS24693-CB51MS24693Screws
MS24693-N51MS24693Screws
MS24693-NB51MS24693Screws
MS24693-S51MS24693Screws
MS24693-U51MS24693Screws
MS24693-51BMS24693Screws
MS24693-A52MS24693Screws
MS24693-B52MS24693Screws
MS24693-BB52MS24693Screws
MS24693-C52MS24693Screws
MS24693-CB52MS24693Screws
MS24693-N52MS24693Screws
MS24693-NB52MS24693Screws
MS24693-S52MS24693Screws
MS24693-U52MS24693Screws
MS24693-52BMS24693Screws
MS24693-A53MS24693Screws
MS24693-B53MS24693Screws
MS24693-BB53MS24693Screws
MS24693-C53MS24693Screws
MS24693-CB53MS24693Screws
MS24693-N53MS24693Screws
MS24693-NB53MS24693Screws
MS24693-S53MS24693Screws
MS24693-U53MS24693Screws
MS24693-53BMS24693Screws
MS24693-A54MS24693Screws
MS24693-B54MS24693Screws
MS24693-BB54MS24693Screws
MS24693-C54MS24693Screws
MS24693-CB54MS24693Screws
MS24693-N54MS24693Screws
MS24693-NB54MS24693Screws
MS24693-S54MS24693Screws
MS24693-U54MS24693Screws
MS24693-54BMS24693Screws
MS24693-A55MS24693Screws
MS24693-B55MS24693Screws
MS24693-BB55MS24693Screws
MS24693-C55MS24693Screws
MS24693-CB55MS24693Screws
MS24693-N55MS24693Screws
MS24693-NB55MS24693Screws
MS24693-S55MS24693Screws
MS24693-U55MS24693Screws
MS24693-55BMS24693Screws
MS24693-A56MS24693Screws
MS24693-B56MS24693Screws
MS24693-BB56MS24693Screws
MS24693-C56MS24693Screws
MS24693-CB56MS24693Screws
MS24693-N56MS24693Screws
MS24693-NB56MS24693Screws
MS24693-S56MS24693Screws
MS24693-U56MS24693Screws
MS24693-56BMS24693Screws
MS24693-A58MS24693Screws
MS24693-B58MS24693Screws
MS24693-BB58MS24693Screws
MS24693-C58MS24693Screws

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