Countersunk on one side only
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 5999-01-157-0748
NSN 5895-00-223-3869
NSN 5996-00-412-7497
NSN 5935-01-234-0661
NSN 5930-01-649-9344
NSN 5996-00-964-5229
NSN 5855-01-482-8290
NSN 5895-01-200-0995
NSN 5975-00-754-4142
NSN 2925-00-862-8550
NSN 2925-01-123-5856
NSN 5855-01-276-5447