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 5985-01-221-8256
NSN 6220-01-367-2923
NSN 5935-01-247-3346
NSN 6685-01-508-7907
NSN 5895-00-008-2334
NSN 5950-01-649-8194
NSN 6645-01-535-0719
NSN 5950-01-550-6508
NSN 5930-01-249-9971
NSN 5999-00-830-8907
NSN 5965-01-012-1065
NSN 6650-01-044-0183