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 5910-01-372-7118
NSN 5990-01-140-5497
NSN 5975-00-913-1503
NSN 5999-00-590-0544
NSN 5945-00-383-5356
NSN 5945-00-200-2311
NSN 6320-01-449-1014
NSN 6650-01-368-1554
NSN 5950-00-028-0082
NSN 4140-01-014-3454
NSN 4140-01-351-1014
NSN 5990-01-485-0260