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 5990-00-150-6979
NSN 4140-01-443-3523
NSN 5975-00-285-0907
NSN 5965-01-104-5102
NSN 5996-01-272-2737
NSN 6220-01-429-4626
NSN 6320-01-422-1212
NSN 6220-00-723-2163
NSN 5925-00-865-1343
NSN 6685-01-462-1770
NSN 5950-01-226-7002
NSN 6320-01-108-5933