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 5855-01-213-3267
NSN 4140-01-446-3525
NSN 4140-01-074-6262
NSN 6220-00-606-6119
NSN 5960-01-302-7583
NSN 6645-00-091-7353
NSN 5910-01-352-9332
NSN 5835-01-565-3411
NSN 6650-01-258-5871
NSN 6135-01-571-0845
NSN 5945-01-557-1092
NSN 5925-01-170-1532