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 6650-01-633-9147
NSN 5925-01-579-1753
NSN 6110-01-633-9660
NSN 5985-01-160-9461
NSN 5910-00-966-2728
NSN 6610-00-810-8326
NSN 5990-01-050-0619
NSN 5985-00-081-1885
NSN 2925-01-618-5706
NSN 6220-01-247-4381
NSN 5960-01-429-5897
NSN 5915-00-482-0926