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 2925-01-110-1467
NSN 5996-00-974-6203
NSN 5990-01-092-1963
NSN 6130-01-641-3327
NSN 5990-01-365-6016
NSN 6620-00-193-0518
NSN 4140-01-413-8397
NSN 6145-01-449-1885
NSN 6110-01-174-6701
NSN 4140-01-383-0370
NSN 6110-01-460-2753
NSN 6645-01-262-4853