Reduced id one end 0.531 in. Dia
No other part numbers with same form, fit, and function found.
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 6105-01-220-2895
NSN 6110-01-604-7362
NSN 6150-01-171-2437
NSN 6650-01-381-7172
NSN 6150-01-634-0575
NSN 5975-00-350-5452
NSN 5998-01-025-1325
NSN 5895-01-571-7505
NSN 5855-00-763-2155
NSN 5985-00-337-6819
NSN 5935-00-266-0208
NSN 5999-01-390-7793