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 6240-01-569-6904
NSN 6130-01-360-6403
NSN 5930-01-439-8629
NSN 6320-01-216-1678
NSN 6320-01-140-7025
NSN 6145-01-442-0621
NSN 5935-01-658-5314
NSN 5905-01-634-0595
NSN 6105-01-619-1646
NSN 2925-00-169-3775
NSN 5910-00-905-6425
NSN 5915-01-506-9829