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 4140-01-232-7556
NSN 5835-00-113-6090
NSN 5965-01-613-0932
NSN 6685-01-563-5713
NSN 5925-01-079-7296
NSN 6220-01-401-5337
NSN 7035-01-633-9537
NSN 6620-01-486-2521
NSN 5999-01-249-1885
NSN 5985-01-461-3113
NSN 5915-00-170-6775
NSN 5945-01-265-8589