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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6610-00-184-0833
NSN 5975-01-321-7295
NSN 4140-01-272-6060
NSN 5945-01-381-1356
NSN 5996-01-415-3098
NSN 6135-00-613-1068
NSN 5999-00-201-9859
NSN 6650-01-585-9249
NSN 5998-01-321-0372
NSN 6610-01-189-3001
NSN 5905-01-388-4328
NSN 6320-01-439-5264