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 5990-00-185-9586
NSN 4140-01-148-9867
NSN 6150-01-512-1735
NSN 6620-00-186-8220
NSN 6110-01-582-2658
NSN 6110-01-326-9223
NSN 5999-01-230-8446
NSN 6685-01-556-2784
NSN 6130-00-727-2456
NSN 5945-00-203-5575
NSN 5855-00-198-3197
NSN 5905-01-266-0226