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 5920-01-020-7659
NSN 5835-00-779-2836
NSN 5935-00-788-3604
NSN 5990-01-254-3197
NSN 6130-01-543-3755
NSN 5990-00-345-8967
NSN 7035-01-204-5092
NSN 6220-01-377-5645
NSN 5895-00-374-8333
NSN 5960-01-328-8248
NSN 5925-01-117-3022
NSN 5999-00-197-3119