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 6240-00-297-3919
NSN 6320-01-054-3046
NSN 6105-01-132-4159
NSN 5855-01-461-8089
NSN 5990-01-382-5364
NSN 5965-00-201-7479
NSN 6220-01-386-3082
NSN 6145-01-569-4761
NSN 5920-01-623-1168
NSN 5965-01-119-1898
NSN 6220-00-529-8415
NSN 6110-01-555-5317