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 5905-01-278-0636
NSN 4140-00-689-6123
NSN 6145-01-364-0346
NSN 4140-00-643-3744
NSN 5990-01-022-6592
NSN 6620-01-352-5640
NSN 5945-00-203-4514
NSN 6110-01-652-2585
NSN 6620-01-106-3553
NSN 6110-00-185-1571
NSN 5930-01-382-9798
NSN 6685-01-518-2448