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 5990-01-443-2931
NSN 5985-00-624-4247
NSN 6220-01-479-0668
NSN 5950-01-550-3494
NSN 5920-01-419-8821
NSN 6650-01-541-4127
NSN 6135-01-550-2518
NSN 5895-00-278-8092
NSN 5960-00-597-2680
NSN 5945-01-087-7041
NSN 6240-00-771-2263
NSN 5965-00-261-8086