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 6145-01-385-8767
NSN 5998-00-389-7001
NSN 5999-01-322-3966
NSN 5950-00-198-7025
NSN 6685-01-480-1781
NSN 6240-00-372-4841
NSN 6320-01-454-1965
NSN 5905-01-423-8613
NSN 5960-00-946-7767
NSN 4140-01-634-0330
NSN 6620-01-423-0833
NSN 6620-00-244-0965