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 2925-00-051-1467
NSN 6150-00-263-3451
NSN 6685-01-485-2314
NSN 7035-00-535-8109
NSN 5925-00-511-9693
NSN 5920-01-020-7659
NSN 5905-00-257-0020
NSN 5960-01-258-6708
NSN 6240-00-557-7471
NSN 5920-01-213-7276
NSN 5935-01-561-5207
NSN 5945-00-919-0375