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: Nuts of iron or steel
NSN 5925-00-872-3028
NSN 6645-01-265-8729
NSN 4140-01-501-4225
NSN 6320-01-631-7828
NSN 5996-01-387-3414
NSN 6240-00-495-6763
NSN 5930-00-194-2416
NSN 5905-01-290-1201
NSN 5920-00-518-1793
NSN 5990-01-071-7764
NSN 5905-01-533-4205
NSN 6130-00-781-2897