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 4140-00-387-3552
NSN 5910-00-535-0526
NSN 4140-01-270-7464
NSN 5945-01-658-3651
NSN 6130-01-048-5273
NSN 6320-00-456-2092
NSN 5945-00-269-5375
NSN 6650-01-091-4241
NSN 5965-01-440-9898
NSN 4140-01-530-9094
NSN 5920-01-027-8349
NSN 5975-00-144-7878