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 6645-00-119-6221
NSN 6105-00-546-2220
NSN 5855-00-482-9876
NSN 2925-01-182-0227
NSN 5920-01-441-2481
NSN 6650-01-416-6272
NSN 4140-01-546-3051
NSN 5990-01-595-9441
NSN 6135-01-436-7733
NSN 5835-01-085-5487
NSN 5835-01-301-0022
NSN 6320-01-512-2031