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 6240-00-941-5211
NSN 4140-01-500-3107
NSN 6620-01-319-9804
NSN 6220-01-446-6430
NSN 6620-01-380-4882
NSN 5905-00-035-8981
NSN 5965-00-951-9961
NSN 5965-01-202-1007
NSN 5905-01-089-7055
NSN 5915-01-246-0545
NSN 5910-00-994-3571
NSN 6685-00-279-3620