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 4140-01-551-3589
NSN 6610-00-855-7607
NSN 6130-00-422-9017
NSN 5910-01-633-9963
NSN 5960-00-740-1369
NSN 7035-01-072-7785
NSN 6135-00-246-0324
NSN 5996-01-094-4611
NSN 6620-01-386-5914
NSN 5996-01-364-7934
NSN 6620-01-173-0009
NSN 5985-01-422-2552