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 6130-01-408-4178
NSN 5920-01-422-4151
NSN 6320-00-405-2348
NSN 5915-01-571-3042
NSN 6105-00-868-2036
NSN 5915-00-326-2096
NSN 6220-01-449-1239
NSN 6610-01-323-9426
NSN 5945-01-094-3075
NSN 6240-00-752-2581
NSN 5945-00-144-8073
NSN 6645-01-326-7316