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 6645-01-573-0553
NSN 6110-00-663-4054
NSN 5835-01-352-6725
NSN 5996-01-344-9279
NSN 5950-00-880-6992
NSN 6240-01-497-0370
NSN 5855-01-389-8884
NSN 6620-01-624-3933
NSN 5960-01-201-5804
NSN 6620-01-116-3983
NSN 2925-01-187-5480
NSN 6645-00-127-3835