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 6645-00-072-1909
NSN 6220-01-083-1499
NSN 4140-01-585-1570
NSN 6110-01-469-3127
NSN 6220-00-142-5115
NSN 6240-00-832-6867
NSN 6620-00-420-1061
NSN 5996-01-651-8601
NSN 6130-00-962-8445
NSN 6110-01-474-1056
NSN 6135-01-153-8027
NSN 6610-00-230-3939