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 4140-01-265-0550
NSN 6620-00-779-5859
NSN 6105-01-520-8237
NSN 6685-01-492-6406
NSN 6220-00-269-8396
NSN 5965-01-426-1707
NSN 6610-01-569-9086
NSN 5930-01-113-8543
NSN 6620-01-502-9104
NSN 5835-00-235-2950
NSN 5945-01-497-3105
NSN 5855-00-451-6155