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 5990-00-145-1187
NSN 6650-00-617-6909
NSN 5965-01-578-6911
NSN 6645-01-549-0935
NSN 5905-00-059-6756
NSN 6150-01-605-2807
NSN 5999-01-318-5781
NSN 4140-01-634-0330
NSN 5835-00-121-7558
NSN 5855-01-143-7051
NSN 5935-01-542-8529
NSN 6650-01-072-7890