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.)
NSN 5965-01-496-7790
NSN 6685-00-278-9496
NSN 6130-01-214-9934
NSN 5996-01-658-7740
NSN 6620-01-413-9243
NSN 6650-00-179-6968
NSN 6145-01-238-8941
NSN 4140-00-608-1736
NSN 2925-01-355-3866
NSN 5960-00-740-7285
NSN 6130-01-215-3688
NSN 5945-01-406-3497