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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 2 of 129

Standard hardware part numbers
Part numberSeriesHardware
AN4-25AN4Bolts
AN4-26AN4Bolts
AN4-27AN4Bolts
AN4-30AN4Bolts
AN4-31AN4Bolts
AN4-32AN4Bolts
AN4-33AN4Bolts
AN4-34AN4Bolts
AN4-35AN4Bolts
AN4-36AN4Bolts
AN4-37AN4Bolts
AN4-40AN4Bolts
AN4-41AN4Bolts
AN4-42AN4Bolts
AN4-43AN4Bolts
AN4-44AN4Bolts
AN4-45AN4Bolts
AN4-46AN4Bolts
AN4-47AN4Bolts
AN4-50AN4Bolts
AN4-51AN4Bolts
AN4-52AN4Bolts
AN4-53AN4Bolts
AN4-54AN4Bolts
AN4-55AN4Bolts
AN4-56AN4Bolts
AN4-57AN4Bolts
AN4-60AN4Bolts
AN4-61AN4Bolts
AN4-62AN4Bolts
AN4-63AN4Bolts
AN4-64AN4Bolts
AN4-65AN4Bolts
AN4-66AN4Bolts
AN4-67AN4Bolts
AN4-70AN4Bolts
AN4-71AN4Bolts
AN4-72AN4Bolts
AN4-73AN4Bolts
AN4-74AN4Bolts
AN4-75AN4Bolts
AN4-76AN4Bolts
AN4-77AN4Bolts
AN4-80AN4Bolts
AN5-4AN5Bolts
AN5-5AN5Bolts
AN5-6AN5Bolts
AN5-7AN5Bolts
AN5-10AN5Bolts
AN5-11AN5Bolts
AN5-12AN5Bolts
AN5-13AN5Bolts
AN5-14AN5Bolts
AN5-15AN5Bolts
AN5-16AN5Bolts
AN5-17AN5Bolts
AN5-20AN5Bolts
AN5-21AN5Bolts
AN5-22AN5Bolts
AN5-23AN5Bolts
AN5-24AN5Bolts
AN5-25AN5Bolts
AN5-26AN5Bolts
AN5-27AN5Bolts
AN5-30AN5Bolts
AN5-31AN5Bolts
AN5-32AN5Bolts
AN5-33AN5Bolts
AN5-34AN5Bolts
AN5-35AN5Bolts
AN5-36AN5Bolts
AN5-37AN5Bolts
AN5-40AN5Bolts
AN5-41AN5Bolts
AN5-42AN5Bolts
AN5-43AN5Bolts
AN5-44AN5Bolts
AN5-45AN5Bolts
AN5-46AN5Bolts
AN5-47AN5Bolts

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