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 5998-01-502-9066
NSN 6150-01-108-5380
NSN 5965-01-422-4823
NSN 4140-00-260-9521
NSN 5895-01-632-6617
NSN 5855-01-074-0446
NSN 5905-00-006-3961
NSN 6650-01-645-2230
NSN 5915-01-512-5697
NSN 5999-01-453-5391
NSN 5985-00-444-2797
NSN 5920-00-269-6178