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.)
NSN 5960-00-011-9315
NSN 5920-01-425-7496
NSN 6145-00-269-2388
NSN 5910-01-415-6671
NSN 6220-01-476-6895
NSN 5985-00-149-9414
NSN 6320-01-578-6006
NSN 5945-01-180-5517
NSN 5960-01-157-7009
NSN 6650-01-555-8049
NSN 6110-01-493-6564
NSN 6320-00-098-2858