A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.
Classification: Nuts of iron or steel
NSN 6220-01-489-5687
NSN 6645-00-339-0318
NSN 5920-01-360-8310
NSN 6620-01-261-0054
NSN 6150-01-596-3703
NSN 6320-00-977-3930
NSN 5835-00-847-7277
NSN 6145-01-119-3746
NSN 5965-00-458-7321
NSN 5975-01-415-5771
NSN 4140-01-396-9847
NSN 5998-00-457-4656