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 6150-01-418-0134
NSN 6110-01-083-6797
NSN 6220-00-902-3692
NSN 5960-00-955-0012
NSN 6220-01-467-4144
NSN 5965-01-126-7500
NSN 5999-01-502-8775
NSN 5935-00-786-0354
NSN 2925-01-495-0586
NSN 5895-01-383-0906
NSN 6320-01-029-4220
NSN 6105-00-001-6460