← 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 62 of 129

Standard hardware part numbers
Part numberSeriesHardware
MS24693-CB247MS24693Screws
MS24693-N247MS24693Screws
MS24693-NB247MS24693Screws
MS24693-S247MS24693Screws
MS24693-U247MS24693Screws
MS24693-247BMS24693Screws
MS24693-A248MS24693Screws
MS24693-B248MS24693Screws
MS24693-BB248MS24693Screws
MS24693-C248MS24693Screws
MS24693-CB248MS24693Screws
MS24693-N248MS24693Screws
MS24693-NB248MS24693Screws
MS24693-S248MS24693Screws
MS24693-U248MS24693Screws
MS24693-248BMS24693Screws
MS24693-A249MS24693Screws
MS24693-B249MS24693Screws
MS24693-BB249MS24693Screws
MS24693-C249MS24693Screws
MS24693-CB249MS24693Screws
MS24693-N249MS24693Screws
MS24693-NB249MS24693Screws
MS24693-S249MS24693Screws
MS24693-U249MS24693Screws
MS24693-249BMS24693Screws
MS24693-A250MS24693Screws
MS24693-B250MS24693Screws
MS24693-BB250MS24693Screws
MS24693-C250MS24693Screws
MS24693-CB250MS24693Screws
MS24693-N250MS24693Screws
MS24693-NB250MS24693Screws
MS24693-S250MS24693Screws
MS24693-U250MS24693Screws
MS24693-250BMS24693Screws
MS24693-A251MS24693Screws
MS24693-B251MS24693Screws
MS24693-BB251MS24693Screws
MS24693-C251MS24693Screws
MS24693-CB251MS24693Screws
MS24693-N251MS24693Screws
MS24693-NB251MS24693Screws
MS24693-S251MS24693Screws
MS24693-U251MS24693Screws
MS24693-251BMS24693Screws
MS24693-A252MS24693Screws
MS24693-B252MS24693Screws
MS24693-BB252MS24693Screws
MS24693-C252MS24693Screws
MS24693-CB252MS24693Screws
MS24693-N252MS24693Screws
MS24693-NB252MS24693Screws
MS24693-S252MS24693Screws
MS24693-U252MS24693Screws
MS24693-252BMS24693Screws
MS24693-A253MS24693Screws
MS24693-B253MS24693Screws
MS24693-BB253MS24693Screws
MS24693-C253MS24693Screws
MS24693-CB253MS24693Screws
MS24693-N253MS24693Screws
MS24693-NB253MS24693Screws
MS24693-S253MS24693Screws
MS24693-U253MS24693Screws
MS24693-253BMS24693Screws
MS24693-A254MS24693Screws
MS24693-B254MS24693Screws
MS24693-BB254MS24693Screws
MS24693-C254MS24693Screws
MS24693-CB254MS24693Screws
MS24693-N254MS24693Screws
MS24693-NB254MS24693Screws
MS24693-S254MS24693Screws
MS24693-U254MS24693Screws
MS24693-254BMS24693Screws
MS24693-A255MS24693Screws
MS24693-B255MS24693Screws
MS24693-BB255MS24693Screws
MS24693-C255MS24693Screws

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