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 6685-00-871-5146
NSN 5910-00-408-8516
NSN 6650-01-359-3980
NSN 6620-00-165-5873
NSN 2925-01-394-9658
NSN 5945-01-067-9527
NSN 6240-01-017-8281
NSN 5920-00-384-8926
NSN 6150-01-517-8223
NSN 5910-00-258-3078
NSN 6145-01-092-2183
NSN 6650-01-359-8537