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 5920-01-099-0963
NSN 7035-01-276-9016
NSN 5915-01-147-0872
NSN 5915-01-305-8918
NSN 5925-01-145-0074
NSN 4140-01-211-3959
NSN 5935-00-179-7070
NSN 5990-01-645-2592
NSN 5975-01-287-8068
NSN 6135-01-584-0941
NSN 6320-00-636-0922
NSN 5915-01-519-2234