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 5855-01-582-1584
NSN 6150-00-820-6425
NSN 5999-00-059-4883
NSN 5945-01-033-7947
NSN 5915-01-397-4993
NSN 6130-00-013-7866
NSN 6145-00-738-5601
NSN 5910-00-403-5093
NSN 6105-01-521-3937
NSN 5965-01-355-7164
NSN 6320-01-397-9995
NSN 5996-01-301-1779