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 6135-00-299-6918
NSN 6645-01-461-3581
NSN 6320-01-441-2438
NSN 6645-00-710-1352
NSN 5930-00-633-0213
NSN 7035-01-078-6252
NSN 2925-00-549-6759
NSN 6135-01-351-1131
NSN 5915-01-447-3151
NSN 4140-01-506-0753
NSN 5920-01-296-5174
NSN 5915-01-317-3158