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 6645-01-162-8023
NSN 5990-01-024-9659
NSN 4140-00-419-0631
NSN 5925-00-205-2767
NSN 6650-01-633-9147
NSN 6650-01-201-2956
NSN 5920-01-200-6274
NSN 6220-01-360-5525
NSN 5996-00-382-9296
NSN 6220-01-658-0474
NSN 5925-01-201-6451
NSN 5925-01-053-3993