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 6650-01-409-1992
NSN 5990-00-274-3225
NSN 6150-01-477-7347
NSN 6240-00-110-9414
NSN 5925-00-529-3950
NSN 6620-01-519-2628
NSN 5950-01-126-7129
NSN 6240-01-413-3035
NSN 5996-00-277-7384
NSN 6650-01-315-7567
NSN 5905-00-155-4767
NSN 5855-01-467-3802