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 6610-01-010-4516
NSN 5855-01-423-7473
NSN 6320-01-600-5808
NSN 5975-01-364-8662
NSN 5960-01-245-0029
NSN 6685-01-333-0806
NSN 4140-00-939-6986
NSN 6135-00-896-3187
NSN 6220-00-676-0904
NSN 5920-01-421-5362
NSN 5985-01-199-8382
NSN 4140-01-117-1960