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 6685-00-308-9431
NSN 5996-01-381-3151
NSN 6130-01-395-2307
NSN 6130-00-732-4258
NSN 5930-01-062-8261
NSN 5925-00-181-9785
NSN 4140-00-865-8950
NSN 5998-00-417-9753
NSN 4140-01-519-9343
NSN 5960-00-409-3221
NSN 6130-00-823-8481
NSN 6135-01-111-1495