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 6620-00-994-9159
NSN 6645-01-381-7104
NSN 6645-00-012-5834
NSN 5855-00-862-3345
NSN 5910-01-008-8704
NSN 6135-01-202-8113
NSN 6650-01-633-9147
NSN 6610-01-048-2870
NSN 5996-01-400-0917
NSN 5920-01-242-5040
NSN 5930-01-520-5905
NSN 5996-00-168-8828