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 5990-01-029-0868
NSN 5930-01-503-8382
NSN 6645-01-201-5802
NSN 6610-00-572-1284
NSN 5935-01-399-0538
NSN 5910-01-179-1879
NSN 2925-01-079-6229
NSN 6650-01-278-4359
NSN 6135-01-204-8712
NSN 6220-01-576-0036
NSN 2925-01-072-7101
NSN 5835-01-340-1604