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 5935-01-400-5949
NSN 5960-01-439-9517
NSN 4140-01-092-5616
NSN 5960-01-641-5493
NSN 6105-01-399-7686
NSN 5990-00-538-7962
NSN 5855-00-256-5562
NSN 4140-01-656-8267
NSN 6645-01-205-3869
NSN 2925-01-157-9204
NSN 5965-01-551-6283
NSN 6645-01-097-5831