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 6135-00-178-9527
NSN 5915-01-620-9455
NSN 5905-01-146-7094
NSN 6130-00-927-2431
NSN 4140-00-648-3303
NSN 6220-00-557-7180
NSN 6130-00-983-5539
NSN 5985-01-657-3452
NSN 5999-01-628-5788
NSN 4140-01-543-8744
NSN 6685-00-707-4842
NSN 6220-01-633-6765