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 4140-01-508-4512
NSN 5920-01-242-6786
NSN 5998-01-474-7940
NSN 5915-00-833-9025
NSN 5950-01-128-3233
NSN 5920-01-052-1445
NSN 5999-01-308-6720
NSN 5905-01-419-9703
NSN 6320-01-266-1612
NSN 5915-01-448-2268
NSN 6145-01-535-7062
NSN 5855-01-439-1838