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 5996-01-648-9515
NSN 4140-00-994-0123
NSN 6135-01-543-9686
NSN 5990-01-473-4314
NSN 5935-00-471-4418
NSN 6220-00-079-2943
NSN 6610-01-360-3564
NSN 5975-01-166-2399
NSN 5990-01-136-4068
NSN 5999-01-571-2789
NSN 6620-01-259-5944
NSN 6135-00-803-3012