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 6135-00-080-9176
NSN 6240-01-431-5790
NSN 5998-00-185-6029
NSN 5905-01-186-7296
NSN 5935-01-659-6627
NSN 5915-01-495-1063
NSN 5965-01-133-3985
NSN 5998-01-510-3971
NSN 6135-01-385-7276
NSN 6650-00-223-7301
NSN 5996-01-422-8103
NSN 6610-01-578-1708