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 4140-00-115-6496
NSN 5990-01-485-0260
NSN 2925-01-492-2421
NSN 6240-01-284-2681
NSN 6620-01-306-1347
NSN 5996-00-284-9711
NSN 5965-01-633-8849
NSN 4140-01-071-6191
NSN 6620-01-415-5803
NSN 5910-01-197-7934
NSN 5975-00-636-4910
NSN 6650-01-336-8197