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 5920-00-445-0027
NSN 5996-01-091-0954
NSN 6610-01-122-0064
NSN 5965-01-422-9770
NSN 6645-00-183-8812
NSN 5930-01-449-1472
NSN 4140-01-551-4941
NSN 6240-00-879-5830
NSN 5925-00-533-1547
NSN 5985-00-237-8499
NSN 5855-01-088-8700
NSN 6240-00-491-5353