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 5960-01-242-5297
NSN 5975-00-427-5861
NSN 6130-00-927-6421
NSN 6645-01-659-1583
NSN 5925-00-389-6433
NSN 5996-01-478-9147
NSN 6320-01-631-7828
NSN 6240-01-498-3168
NSN 6110-01-399-3417
NSN 5915-01-555-8081
NSN 6650-01-112-0453
NSN 5915-00-182-8068