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 6240-01-337-8401
NSN 6105-01-379-0603
NSN 6145-00-869-3089
NSN 5975-01-376-0426
NSN 6150-00-305-2744
NSN 5999-01-106-6809
NSN 6240-01-515-1553
NSN 5895-00-178-0375
NSN 6620-00-708-3323
NSN 6320-01-629-1277
NSN 5935-01-418-1014
NSN 5960-00-140-9583