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 5920-00-761-3898
NSN 6685-01-190-0871
NSN 4140-01-267-5137
NSN 6150-00-514-0899
NSN 5910-01-092-5816
NSN 5985-01-029-8322
NSN 5920-01-308-8582
NSN 5965-01-474-1625
NSN 6620-01-554-8169
NSN 6685-01-455-3226
NSN 6685-00-162-8077
NSN 5998-01-043-6605