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 6220-00-624-7175
NSN 6685-01-418-0925
NSN 5998-01-423-9853
NSN 6220-01-352-9825
NSN 5895-01-583-6461
NSN 6130-00-276-0658
NSN 6650-01-424-2489
NSN 5985-01-146-4689
NSN 6145-00-512-6675
NSN 6130-01-197-2920
NSN 5910-01-535-2351
NSN 6145-00-683-5353