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 5996-01-218-6468
NSN 6645-00-327-4005
NSN 5925-00-244-2834
NSN 6620-00-244-8020
NSN 6240-00-519-3399
NSN 5965-01-417-6946
NSN 6650-01-334-9410
NSN 5935-01-422-3228
NSN 5965-01-566-8609
NSN 5975-01-416-8433
NSN 5999-01-240-2204
NSN 6650-01-333-3646