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 6645-01-651-2743
NSN 6320-00-238-9973
NSN 5985-01-386-2760
NSN 6135-01-513-3581
NSN 6240-01-522-2070
NSN 6110-01-167-0872
NSN 6645-00-041-4074
NSN 5960-00-273-3058
NSN 6110-01-626-2587
NSN 5999-00-772-2974
NSN 6240-01-167-1060
NSN 6150-01-137-5165