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 5965-01-458-2412
NSN 5975-01-196-5842
NSN 6685-01-256-6443
NSN 5925-00-139-1708
NSN 5835-01-225-0372
NSN 6240-00-925-2194
NSN 2925-01-221-9398
NSN 7035-01-142-8036
NSN 6135-01-437-6409
NSN 4140-01-652-8977
NSN 6110-01-303-5837
NSN 2925-01-043-9786