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
NSN 6110-01-111-0959
NSN 5999-01-442-8662
NSN 6220-01-111-5975
NSN 6610-00-594-6372
NSN 6150-01-227-1924
NSN 5960-01-358-9733
NSN 6685-01-067-1447
NSN 5998-00-158-6329
NSN 6320-00-674-1361
NSN 5895-01-484-9666
NSN 5990-01-463-2279