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 6110-01-142-2550
NSN 6150-00-264-5978
NSN 5835-01-416-6449
NSN 6145-01-505-0923
NSN 5960-01-209-2410
NSN 5895-00-679-8274
NSN 6645-01-534-5545
NSN 5930-01-463-2065
NSN 6650-01-147-3125
NSN 4140-01-020-9926
NSN 6220-01-109-6676
NSN 4140-01-647-4488