A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-01-191-1247
NSN 5975-00-547-2958
NSN 6150-01-384-3995
NSN 5996-01-129-2524
NSN 5998-00-657-4768
NSN 5999-01-615-1676
NSN 6150-01-537-4388
NSN 7035-01-472-1999
NSN 6685-01-453-2222
NSN 4140-01-075-3490
NSN 5920-01-451-4260
NSN 5905-00-566-0629