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 6645-00-989-2972
NSN 6685-00-082-1939
NSN 6110-00-363-3974
NSN 6240-00-612-0883
NSN 5905-01-429-1256
NSN 6610-01-301-9457
NSN 5895-01-578-3093
NSN 5905-00-447-0706
NSN 5835-01-299-5055
NSN 5855-00-472-2055
NSN 5998-00-772-7043
NSN 5905-01-530-4342