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 5999-00-805-2150
NSN 4140-01-312-2361
NSN 6685-01-602-9962
NSN 4140-01-371-0327
NSN 5950-00-626-6578
NSN 6135-00-134-6648
NSN 5905-01-427-3804
NSN 5999-01-422-1602
NSN 5950-00-073-9426
NSN 4140-00-517-7902
NSN 5999-01-139-4275
NSN 5999-01-281-4416