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 6130-01-187-1536
NSN 5855-01-342-3824
NSN 6130-01-220-2222
NSN 6145-01-458-3619
NSN 5960-01-512-0233
NSN 5999-01-062-4039
NSN 5999-00-493-9471
NSN 5975-00-189-0857
NSN 5960-01-191-1982
NSN 6150-01-406-3431
NSN 6220-01-359-3009
NSN 6240-01-648-2327