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 6240-01-607-1480
NSN 6220-00-823-6688
NSN 5999-00-111-2399
NSN 5990-00-242-3754
NSN 6240-01-302-1624
NSN 4140-01-083-5870
NSN 5910-00-792-8182
NSN 6685-00-374-9285
NSN 5925-01-529-6371
NSN 5915-00-547-9935
NSN 6130-00-509-1591
NSN 5945-01-007-0366