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 6620-01-386-5914
NSN 5975-01-510-1976
NSN 5950-00-170-9103
NSN 6150-00-630-4635
NSN 6620-01-470-9861
NSN 5975-01-504-4573
NSN 6130-01-207-4493
NSN 5998-00-647-1225
NSN 5975-01-502-2436
NSN 5930-00-842-3137
NSN 6685-01-634-0611
NSN 5895-00-844-2954