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 4140-01-146-4474
NSN 5855-01-391-7077
NSN 6620-01-468-0362
NSN 6145-01-386-6762
NSN 5999-01-390-2012
NSN 6105-00-879-0865
NSN 5910-01-361-6269
NSN 5998-00-138-1699
NSN 5985-01-281-1647
NSN 6685-01-151-2655
NSN 6620-01-313-8164
NSN 5950-01-175-5971