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 6130-00-431-8804
NSN 5990-00-105-7096
NSN 5925-01-549-4604
NSN 5985-01-290-9966
NSN 6110-01-152-5175
NSN 4140-01-290-1733
NSN 5895-01-048-2997
NSN 6650-00-450-8847
NSN 6645-01-576-2691
NSN 5990-00-844-5659
NSN 5910-00-197-1957
NSN 5910-01-354-1593