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 6130-01-131-5324
NSN 7035-01-281-3642
NSN 7035-01-074-7634
NSN 6650-00-842-5463
NSN 6130-00-719-7219
NSN 6130-01-055-2227
NSN 6110-00-147-6006
NSN 6650-00-658-9627
NSN 5996-01-528-7850
NSN 6150-01-634-0575
NSN 6105-01-631-6379
NSN 5835-01-242-9806