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 6220-00-135-6516
NSN 6130-00-446-4044
NSN 5935-01-429-6316
NSN 6130-01-488-9739
NSN 5998-01-265-2545
NSN 5999-01-217-2035
NSN 6145-00-493-4073
NSN 6110-01-511-4523
NSN 5996-00-057-6290
NSN 5999-00-012-3071
NSN 6320-01-228-2380
NSN 5996-01-608-4360