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 6220-01-645-7770
NSN 6650-01-368-3286
NSN 5999-00-177-3383
NSN 6645-01-370-4259
NSN 6320-01-527-0211
NSN 5935-00-823-4494
NSN 6150-01-568-3973
NSN 6240-01-633-9357
NSN 6145-00-199-2284
NSN 5910-01-336-8511
NSN 5996-01-330-0684
NSN 5960-00-204-7506