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 6610-01-204-9146
NSN 5910-01-147-3869
NSN 6685-01-108-5782
NSN 6130-01-492-3978
NSN 5925-00-782-6946
NSN 5910-00-522-5208
NSN 5965-00-463-3929
NSN 6650-00-826-7396
NSN 4140-01-056-4453
NSN 5998-00-816-4177
NSN 5975-01-411-6054
NSN 5975-01-234-2947