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 4140-00-099-9205
NSN 6110-01-290-8146
NSN 6220-01-258-6217
NSN 5950-01-469-5974
NSN 6110-00-210-4235
NSN 6685-01-445-7658
NSN 5996-01-151-1607
NSN 6135-01-504-4309
NSN 5965-01-577-0565
NSN 5999-01-206-1650
NSN 6110-01-482-4328
NSN 5895-01-207-0753