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 5975-01-204-2745
NSN 5915-00-211-2219
NSN 5835-00-034-4976
NSN 4140-01-421-4045
NSN 5996-00-583-0796
NSN 5835-01-171-9126
NSN 6130-01-342-5857
NSN 6650-01-264-9076
NSN 6685-00-816-8838
NSN 6135-01-391-8539
NSN 6320-01-301-4699
NSN 6150-01-285-9860