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 4140-00-676-3899
NSN 6130-00-397-7690
NSN 5945-01-597-9797
NSN 5945-01-119-1352
NSN 5950-01-475-2288
NSN 6650-00-457-0446
NSN 5895-01-461-3518
NSN 5985-01-209-9164
NSN 5855-01-631-4331
NSN 7035-00-865-9105
NSN 6105-01-338-2576
NSN 7035-01-003-9142