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 2925-01-004-5627
NSN 5925-01-371-2555
NSN 6135-01-324-7718
NSN 5895-00-065-8619
NSN 6650-01-230-5155
NSN 6145-00-958-0520
NSN 5835-00-224-9148
NSN 2925-01-267-1598
NSN 5996-00-842-9120
NSN 4140-00-963-2855
NSN 5855-00-631-4565
NSN 6645-01-505-5772