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 6620-01-119-3396
NSN 6150-01-075-8366
NSN 6220-01-429-8534
NSN 6620-00-155-2608
NSN 6105-01-127-8831
NSN 2925-01-157-9204
NSN 5999-01-534-2638
NSN 5999-01-029-3025
NSN 5985-01-023-8377
NSN 6220-01-216-5954
NSN 6645-01-383-1083
NSN 6220-01-147-4652