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 5905-01-548-4576
NSN 6150-00-661-0184
NSN 5985-01-234-5924
NSN 6685-01-562-1364
NSN 6130-00-780-3043
NSN 6320-00-004-9158
NSN 6685-00-968-1953
NSN 5945-01-262-2106
NSN 4140-01-358-5141
NSN 6240-01-075-6559
NSN 5920-00-242-2758
NSN 6685-01-073-1773