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 5960-01-374-3527
NSN 5935-01-132-1567
NSN 6220-00-468-0296
NSN 6685-01-198-5776
NSN 5960-01-604-1158
NSN 6620-01-240-3361
NSN 7035-00-275-5604
NSN 5965-00-188-5531
NSN 5945-00-100-5901
NSN 6145-01-224-7228
NSN 6645-01-489-5426
NSN 5999-01-291-0500