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 6645-01-338-9152
NSN 6650-01-064-6196
NSN 5855-00-256-5562
NSN 7035-01-165-6820
NSN 6650-01-113-7563
NSN 5999-01-555-3854
NSN 6150-01-361-8133
NSN 5930-01-407-5198
NSN 6150-01-286-3458
NSN 6145-01-579-7974
NSN 5895-00-576-8453
NSN 2925-01-543-0073