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 4140-01-538-6011
NSN 4140-01-364-1684
NSN 6650-01-549-5838
NSN 5975-01-370-4455
NSN 5999-01-007-6773
NSN 6110-01-026-0312
NSN 5950-01-217-0612
NSN 5930-01-475-6542
NSN 5835-01-632-6627
NSN 6130-01-509-3637
NSN 5910-01-453-4761
NSN 5935-00-462-7135