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 6320-00-583-3105
NSN 5960-01-300-6788
NSN 5998-00-115-9909
NSN 5965-01-415-7080
NSN 5999-01-440-9537
NSN 5999-01-645-4036
NSN 5925-01-242-9945
NSN 6645-01-051-1453
NSN 6145-00-663-6133
NSN 5925-00-118-2464
NSN 6145-01-337-0008
NSN 6650-01-448-3192