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 6610-00-222-9273
NSN 4140-01-227-1342
NSN 5998-00-690-9973
NSN 5960-01-168-9631
NSN 6610-01-225-3941
NSN 5998-00-176-2227
NSN 6220-01-429-1294
NSN 6220-01-041-2194
NSN 5935-01-268-1808
NSN 5985-00-248-4978
NSN 7035-00-517-8232
NSN 5925-01-187-0695