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 6620-01-571-7727
NSN 6150-00-221-6684
NSN 4140-01-443-3806
NSN 5960-01-381-2478
NSN 6685-01-571-7926
NSN 6130-01-212-6506
NSN 5965-01-515-2009
NSN 5945-00-284-7312
NSN 5960-01-174-6975
NSN 6135-01-350-2932
NSN 6145-01-417-2988
NSN 5996-01-467-2177