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 5915-00-225-0550
NSN 6685-01-302-4242
NSN 5990-01-118-0151
NSN 5930-01-082-7138
NSN 5996-01-460-5438
NSN 5960-00-503-1847
NSN 6135-01-388-1981
NSN 2925-01-570-3690
NSN 5950-00-675-9554
NSN 5965-00-362-2158
NSN 5998-01-123-9579
NSN 4140-01-346-8219