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 5965-01-633-8849
NSN 6240-00-949-4849
NSN 6650-01-509-8018
NSN 5905-01-360-6629
NSN 2925-01-327-3069
NSN 6150-00-496-9064
NSN 6650-01-289-0524
NSN 5925-00-197-4329
NSN 6685-01-043-9943
NSN 6135-01-026-9960
NSN 5945-01-403-2800
NSN 6135-01-413-4747