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 5855-00-481-0019
NSN 4140-01-579-1286
NSN 5960-00-762-0553
NSN 6220-01-647-0816
NSN
NSN 6130-00-543-1302
NSN 6135-01-441-0518
NSN 6240-01-607-6252
NSN 5905-00-600-2929
NSN 6135-00-125-5265
NSN 6610-01-409-1781
NSN 6130-01-625-5711