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 6645-00-881-9978
NSN 5945-01-080-5132
NSN 5975-01-411-6054
NSN 5965-00-840-3791
NSN 5855-01-145-8973
NSN 5975-01-151-9693
NSN 6145-01-322-5520
NSN 6645-01-649-8227
NSN 5920-00-665-3973
NSN 5895-00-755-4647
NSN 4140-01-304-3792
NSN 5985-01-634-0635