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 5950-01-502-9565
NSN 5935-00-513-7321
NSN 5925-00-937-9913
NSN 6620-01-642-9678
NSN 6320-00-456-2092
NSN 5945-00-869-9471
NSN 6620-01-197-8207
NSN 6610-01-444-4851
NSN 5950-01-305-7765
NSN 6135-01-545-5519
NSN 6610-00-061-7882
NSN 6685-01-634-0611