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 5905-01-158-7174
NSN 5990-01-503-9804
NSN 6645-00-544-8529
NSN 6220-01-459-8017
NSN 6240-01-541-7009
NSN 5950-00-081-5136
NSN 6620-00-932-6508
NSN 6135-00-299-6918
NSN 6135-00-134-6648
NSN 5998-01-467-9373
NSN 5996-00-389-7404
NSN 6620-00-273-8735