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 6240-00-635-9953
NSN 5925-01-068-5262
NSN 5835-00-435-6638
NSN 6145-01-500-4002
NSN 5930-00-102-8886
NSN 6320-01-084-7456
NSN 5999-00-306-2075
NSN 5975-00-408-8152
NSN 6650-01-088-4317
NSN 5930-01-154-2641
NSN 6685-00-244-0642
NSN 4140-01-407-5118