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 4140-00-295-0787
NSN 2925-01-308-6220
NSN 6130-01-021-4980
NSN 6150-00-078-7064
NSN 4140-00-449-1356
NSN 5996-01-506-4981
NSN 5985-01-206-4729
NSN 5910-00-706-9983
NSN 5915-01-155-1388
NSN 5930-01-194-8905
NSN 6135-01-421-1052
NSN 6320-01-350-5570