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 6320-01-607-1491
NSN 6220-01-364-5002
NSN 7035-00-794-0792
NSN 2925-01-270-1124
NSN 5945-01-618-8911
NSN 5965-01-082-6800
NSN 6240-01-261-4958
NSN 6320-01-111-8851
NSN 2925-01-180-7794
NSN 6130-00-062-9921
NSN 5920-00-296-9454
NSN 6150-01-429-8315