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 4140-01-531-7375
NSN 5996-01-365-2728
NSN 5950-01-576-8710
NSN 5960-01-495-0859
NSN 6150-01-591-3553
NSN 6135-01-546-4588
NSN 5999-01-438-8997
NSN 5910-01-211-6936
NSN 5965-00-815-2525
NSN 5985-01-604-2988
NSN 5950-00-182-8204
NSN 5999-00-089-0414