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 6320-01-283-1300
NSN 6620-01-453-6764
NSN 5998-01-520-5657
NSN 5996-01-346-8809
NSN 6135-01-515-9626
NSN 5999-01-089-8017
NSN 6110-01-633-9660
NSN 6650-00-820-4577
NSN 5935-01-221-5336
NSN 6645-01-352-5449
NSN 5945-01-169-6410
NSN 6320-01-181-9474