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 5925-01-600-0250
NSN 5950-00-301-1236
NSN 6610-01-400-2296
NSN 6135-01-495-0933
NSN 5998-01-389-8440
NSN 6220-01-629-7879
NSN 6220-01-434-1886
NSN 5998-01-228-6317
NSN 5855-01-010-4921
NSN 6110-01-389-1120
NSN 5975-01-349-4916
NSN 5960-00-091-8729