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 6220-01-417-3330
NSN 5999-01-616-3948
NSN 6135-01-622-1296
NSN 6645-00-927-1444
NSN 6240-01-489-5806
NSN 6135-01-286-9563
NSN 5855-01-335-8907
NSN 6150-00-629-2551
NSN 5925-01-098-7829
NSN 6105-00-828-9230
NSN 6645-00-450-2209
NSN 5999-01-658-7365