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 5965-01-536-6730
NSN 6135-01-235-4168
NSN 6650-00-774-7078
NSN 5945-01-614-4862
NSN 6135-00-377-9165
NSN 6650-01-070-5422
NSN 5998-01-100-3919
NSN 6105-00-161-1834
NSN 5910-01-633-9963
NSN 6150-00-693-4818
NSN 6650-00-983-6722
NSN 5996-00-222-6049