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 4140-01-160-8934
NSN 5950-01-420-6267
NSN 7035-01-297-7941
NSN 6220-01-571-6466
NSN 6135-00-377-9165
NSN 6240-01-210-8467
NSN 5920-00-959-5664
NSN 5985-00-072-1431
NSN 6150-01-233-5723
NSN 5975-00-968-5048
NSN 4140-00-247-4773
NSN 5950-01-319-5635