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.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6145-01-359-8028
NSN 6685-01-506-9553
NSN 5935-01-568-7851
NSN 5915-01-423-7894
NSN 6135-01-204-8712
NSN 6620-01-380-4882
NSN 5999-00-850-4690
NSN 6110-01-336-7944
NSN 5965-01-658-4674
NSN 5985-00-578-7740
NSN 6645-00-155-2398
NSN 6110-01-513-1983