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 5990-01-534-8609
NSN 6220-01-100-2703
NSN 5999-01-610-9506
NSN 5945-01-265-2868
NSN 6685-00-546-9323
NSN 4140-01-165-9469
NSN 5930-01-352-4720
NSN 5895-01-336-6171
NSN 5990-00-181-2220
NSN 6320-01-470-6826
NSN 6620-00-348-4645
NSN 6645-01-424-2891