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 5990-01-012-0613
NSN 5975-01-168-7643
NSN 6145-00-570-0516
NSN 5985-01-225-3989
NSN 6130-01-607-2157
NSN 6650-01-168-1659
NSN 5925-01-139-3866
NSN 5920-01-501-0674
NSN 6220-00-171-8638
NSN 5935-01-246-2855
NSN 5855-01-425-1330
NSN 5996-01-199-7494