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 7035-00-517-8232
NSN 5925-01-300-8337
NSN 5935-00-504-0376
NSN 2925-00-924-5040
NSN 5905-01-578-5597
NSN 5950-01-550-5663
NSN 5999-00-081-9413
NSN 5996-00-525-1777
NSN 7035-00-908-4933
NSN 5895-00-246-4415
NSN 5910-01-295-8437
NSN 5855-01-461-7726