← 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.

5710 references · page 28 of 72

Standard hardware part numbers
Part numberSeriesHardware
MS24693-CB219MS24693Screws
MS24693-N219MS24693Screws
MS24693-NB219MS24693Screws
MS24693-S219MS24693Screws
MS24693-U219MS24693Screws
MS24693-219BMS24693Screws
MS24693-A420MS24693Screws
MS24693-B420MS24693Screws
MS24693-BB420MS24693Screws
MS24693-C420MS24693Screws
MS24693-CB420MS24693Screws
MS24693-N420MS24693Screws
MS24693-NB420MS24693Screws
MS24693-S420MS24693Screws
MS24693-U420MS24693Screws
MS24693-420BMS24693Screws
MS24693-A421MS24693Screws
MS24693-B421MS24693Screws
MS24693-BB421MS24693Screws
MS24693-C421MS24693Screws
MS24693-CB421MS24693Screws
MS24693-N421MS24693Screws
MS24693-NB421MS24693Screws
MS24693-S421MS24693Screws
MS24693-U421MS24693Screws
MS24693-421BMS24693Screws
MS24693-A422MS24693Screws
MS24693-B422MS24693Screws
MS24693-BB422MS24693Screws
MS24693-C422MS24693Screws
MS24693-CB422MS24693Screws
MS24693-N422MS24693Screws
MS24693-NB422MS24693Screws
MS24693-S422MS24693Screws
MS24693-U422MS24693Screws
MS24693-422BMS24693Screws
MS24693-A423MS24693Screws
MS24693-B423MS24693Screws
MS24693-BB423MS24693Screws
MS24693-C423MS24693Screws
MS24693-CB423MS24693Screws
MS24693-N423MS24693Screws
MS24693-NB423MS24693Screws
MS24693-S423MS24693Screws
MS24693-U423MS24693Screws
MS24693-423BMS24693Screws
MS24693-A424MS24693Screws
MS24693-B424MS24693Screws
MS24693-BB424MS24693Screws
MS24693-C424MS24693Screws
MS24693-CB424MS24693Screws
MS24693-N424MS24693Screws
MS24693-NB424MS24693Screws
MS24693-S424MS24693Screws
MS24693-U424MS24693Screws
MS24693-424BMS24693Screws
MS24693-A425MS24693Screws
MS24693-B425MS24693Screws
MS24693-BB425MS24693Screws
MS24693-C425MS24693Screws
MS24693-CB425MS24693Screws
MS24693-N425MS24693Screws
MS24693-NB425MS24693Screws
MS24693-S425MS24693Screws
MS24693-U425MS24693Screws
MS24693-425BMS24693Screws
MS24693-A201MS24693Screws
MS24693-B201MS24693Screws
MS24693-BB201MS24693Screws
MS24693-C201MS24693Screws
MS24693-CB201MS24693Screws
MS24693-N201MS24693Screws
MS24693-NB201MS24693Screws
MS24693-S201MS24693Screws
MS24693-U201MS24693Screws
MS24693-201BMS24693Screws
MS24693-A202MS24693Screws
MS24693-B202MS24693Screws
MS24693-BB202MS24693Screws
MS24693-C202MS24693Screws

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.

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