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 5999-00-263-4134
NSN 6645-00-222-2785
NSN 4140-01-479-4257
NSN 5960-01-468-5785
NSN 6105-01-269-0063
NSN 6685-00-875-9889
NSN 5905-01-389-0020
NSN 5998-01-144-6874
NSN 5999-01-279-1070
NSN 6135-01-010-0891
NSN 2925-00-169-3775
NSN 6135-01-056-4609