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 5960-01-624-1170
NSN 5999-01-183-3828
NSN 5985-01-142-4039
NSN 6105-01-545-0830
NSN 6650-01-107-7553
NSN 6220-01-578-4401
NSN 2925-01-376-9236
NSN 6110-01-497-7502
NSN 6650-01-466-5997
NSN 6110-00-781-7842
NSN 5910-00-758-9369
NSN 6620-01-199-8486