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 4140-01-297-1724
NSN 2925-01-474-3363
NSN 5835-01-595-4099
NSN 6105-01-013-9252
NSN 5935-01-551-9694
NSN 6610-00-717-6666
NSN 5999-01-652-6756
NSN 6150-00-173-9283
NSN 6320-01-216-1678
NSN 6220-00-357-9534
NSN 6685-00-770-2052
NSN 4140-00-826-9031