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 5930-01-634-0659
NSN 5895-01-586-3683
NSN 5935-00-925-2536
NSN 6220-01-339-6342
NSN 5990-01-094-6826
NSN 5975-01-599-8415
NSN 5965-00-433-6181
NSN 6650-01-214-6285
NSN 5935-01-463-7487
NSN 4140-01-254-1659
NSN 4140-01-360-6744
NSN 6220-01-076-3695