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 5990-01-288-7393
NSN 5915-00-538-7685
NSN 6130-01-169-6172
NSN 5855-01-576-4223
NSN 7035-01-191-2822
NSN 5895-01-485-6660
NSN 6685-01-370-0586
NSN 5920-01-651-9060
NSN 6685-01-576-9204
NSN 6220-00-428-5943
NSN 6610-01-570-7550
NSN 6240-00-840-3647