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 6110-00-946-5384
NSN 6320-01-515-7913
NSN 5996-01-396-8829
NSN 5975-01-431-9730
NSN 6150-01-551-5358
NSN 6110-01-476-9035
NSN 6145-01-103-4863
NSN 5855-00-455-6070
NSN 5965-01-458-5299
NSN 6110-01-352-6233
NSN 5905-01-514-7349
NSN 4140-01-192-3570