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 5985-00-153-0864
NSN 5996-01-136-8903
NSN 5999-01-365-6600
NSN 5990-01-478-8638
NSN 5998-01-415-4815
NSN 4140-00-182-1454
NSN 5925-01-238-8563
NSN 2925-00-595-7525
NSN 6220-01-336-7288
NSN 5925-00-484-4566
NSN 5999-00-501-3788
NSN 6105-01-074-3588