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 6240-00-990-3226
NSN 5930-00-820-1332
NSN 5915-01-037-7819
NSN 5998-01-461-8955
NSN 5975-01-326-3006
NSN 2925-01-139-5144
NSN 6240-00-999-7806
NSN 6685-01-392-1513
NSN 5920-00-125-7757
NSN 6650-01-155-8182
NSN 5835-01-384-3206
NSN 6650-01-315-7567