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 5895-01-160-9393
NSN 5990-01-386-8051
NSN 5855-01-515-9547
NSN 5855-01-533-3888
NSN 6145-01-216-5305
NSN 4140-00-516-5002
NSN 6650-01-255-7996
NSN 5835-01-626-9603
NSN 6150-00-458-8300
NSN 6145-00-007-0396
NSN 6320-01-331-1783
NSN 5915-01-553-0710