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 4140-01-053-2027
NSN 6685-01-400-4192
NSN 6620-01-415-5803
NSN 2925-00-253-1655
NSN 6685-01-292-2607
NSN 5835-01-004-6693
NSN 6650-00-035-9297
NSN 6240-00-349-9323
NSN 5930-01-363-9412
NSN 6240-01-266-3655
NSN 6135-00-078-9931
NSN 5930-01-101-5151