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 5925-01-423-3217
NSN 6105-01-374-7915
NSN 6150-00-144-7115
NSN 6645-01-261-0056
NSN 6220-01-026-7260
NSN 5915-00-433-2458
NSN 6645-01-599-2311
NSN 4140-01-074-7155
NSN 5985-01-279-4934
NSN 5990-01-224-8052
NSN 5920-00-081-9156
NSN 5895-01-459-2064