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 6610-01-226-2347
NSN 6145-01-042-2958
NSN 5965-00-892-3850
NSN 2925-01-085-0691
NSN 6320-00-004-9158
NSN 5915-01-550-9489
NSN 7035-01-361-1311
NSN 5960-00-289-6591
NSN 5920-01-023-0040
NSN 6645-01-495-0939
NSN 6685-01-219-9754
NSN 5985-00-905-6609