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 5895-01-415-3732
NSN 5999-00-900-4538
NSN 5999-01-495-8176
NSN 5930-01-358-4083
NSN 6130-01-055-9980
NSN 5999-00-989-1006
NSN 6145-00-387-5459
NSN 4140-01-568-3209
NSN 6645-00-932-1464
NSN 6620-00-764-3057
NSN 6620-01-004-7072
NSN 4140-01-470-7990