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 5985-01-281-0231
NSN 6620-00-363-7528
NSN 5975-00-282-2707
NSN 6650-00-390-3568
NSN 5950-01-077-8358
NSN 5910-01-133-0430
NSN 4140-01-534-3962
NSN 6110-01-100-4445
NSN 5910-00-392-6822
NSN 5920-01-328-4899
NSN 5945-01-014-5059
NSN 4140-01-657-1239