Thread is metric; all sides are chamfered 10 degrees min., 20 degrees max.: nut is corrosion resistent, electro deposited nickel .0001-.0002 in. Thick
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 5990-00-070-0538
NSN 5895-01-068-6913
NSN 5915-01-527-6498
NSN 5855-01-222-6065
NSN 6650-00-654-6950
NSN 5910-01-467-6569
NSN 6145-01-466-6731
NSN 6685-00-999-2503
NSN 6320-01-380-0561
NSN 5945-01-463-2802
NSN 5965-00-678-8725
NSN 6130-00-263-1827