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 4140-01-242-2296
NSN 5930-01-415-1157
NSN 6645-00-149-1100
NSN 6145-01-142-2234
NSN 4140-01-471-4646
NSN 5999-00-246-8708
NSN 6320-01-211-6578
NSN 5998-00-083-0303
NSN 6685-01-589-8522
NSN 6110-01-506-3795
NSN 5835-00-553-3575
NSN 5920-01-507-5579