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 4140-01-300-1573
NSN 5925-00-736-0425
NSN 6110-01-375-5568
NSN 5920-00-700-2942
NSN 6685-01-073-3416
NSN 5996-00-347-9859
NSN 5960-01-316-8100
NSN 6620-01-010-0518
NSN 5930-00-081-8782
NSN 6645-01-461-3725
NSN 5999-01-432-1349
NSN 6620-01-152-9453