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 6320-01-029-4220
NSN 6240-01-633-6350
NSN 6105-00-161-1834
NSN 4140-00-451-8374
NSN 5950-01-139-1348
NSN 7035-01-339-5480
NSN 6645-01-348-5722
NSN 6650-00-411-4925
NSN 6220-00-078-6021
NSN 5996-01-515-2339
NSN 5950-01-143-5419
NSN 5950-01-650-3914