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 5996-01-156-1526
NSN 5998-01-474-3934
NSN 6145-00-198-5675
NSN 5915-01-076-8877
NSN 5975-01-380-7621
NSN 6130-01-459-8215
NSN 6145-01-277-8917
NSN 5975-01-158-6150
NSN 6240-01-071-1507
NSN 6220-01-444-1692
NSN 5998-00-576-3972
NSN 5910-01-135-4314