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 5920-01-634-0250
NSN 5999-01-041-3794
NSN 5990-01-116-2181
NSN 5925-01-163-6491
NSN 2925-01-198-7528
NSN 5835-01-250-2939
NSN 4140-01-325-6972
NSN 5985-01-534-7728
NSN 5965-00-870-1069
NSN 6685-00-005-1288
NSN 2925-00-633-7223
NSN 5945-00-082-9542