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 6650-01-278-2151
NSN 6650-01-522-2391
NSN 5975-00-233-6301
NSN 4140-00-826-9031
NSN 5905-00-396-6436
NSN 6645-00-708-8569
NSN 5915-01-530-4288
NSN 6620-00-079-0311
NSN 5930-00-726-0510
NSN 5998-01-300-5336
NSN 6135-01-633-8502
NSN 5855-00-308-0474