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 5925-00-584-7189
NSN 5960-00-125-9335
NSN 6320-01-420-0340
NSN 5990-00-754-2842
NSN 5910-01-647-4679
NSN 5895-00-224-6955
NSN 5925-01-132-1766
NSN 6135-01-591-7139
NSN 6650-01-371-9133
NSN 5999-01-438-4815
NSN 6220-01-173-0584
NSN 5930-00-775-4044