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 5996-01-472-2858
NSN 5998-00-508-0150
NSN 6610-00-382-0266
NSN 6685-00-413-6671
NSN 6620-01-006-4899
NSN 6610-00-419-0315
NSN 6685-01-618-6690
NSN 6650-01-183-0711
NSN 6130-01-567-6004
NSN 6610-00-040-4124
NSN 4140-01-227-1342
NSN 6610-00-981-9408