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 6620-01-378-1366
NSN 5975-01-418-1858
NSN 5996-01-242-8347
NSN 6610-01-527-1599
NSN 7035-01-590-6064
NSN 5905-01-584-7826
NSN 6620-00-431-3837
NSN 5996-01-251-1149
NSN 6610-01-327-3187
NSN 5996-01-260-3981
NSN 5999-01-262-2957
NSN 6650-01-462-5879