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 5965-01-580-4072
NSN 5999-00-975-4063
NSN 5905-00-908-3088
NSN 6650-01-253-1134
NSN 5975-01-398-4672
NSN 5965-01-318-2201
NSN 4140-01-054-3553
NSN 5930-01-003-9727
NSN 5935-01-066-3555
NSN 6150-01-080-9384
NSN 7035-01-589-1281
NSN 7035-01-492-6799