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 5915-00-308-0281
NSN 6620-00-067-3539
NSN 6110-00-049-3628
NSN 6685-01-214-4626
NSN 7035-00-830-1235
NSN 6645-01-421-2445
NSN 6650-01-575-1044
NSN 5910-00-019-5070
NSN 5950-01-153-2650
NSN 5999-00-059-9461
NSN 5920-01-475-1979
NSN 5835-00-864-4481