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 5905-01-221-8634
NSN 6145-00-583-9989
NSN 5975-01-369-4658
NSN 5960-00-973-7882
NSN 5965-00-043-3463
NSN 6620-00-068-2503
NSN 4140-01-577-0245
NSN 6240-01-467-6429
NSN 5855-00-167-7893
NSN 5930-01-014-4851
NSN 5930-01-156-4327
NSN 5975-00-351-6114