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 6240-01-453-3199
NSN 4140-01-425-9702
NSN 5930-00-512-5612
NSN 5985-01-659-5629
NSN 6105-01-234-5401
NSN 6645-01-099-2910
NSN 5905-01-201-2234
NSN 5925-00-359-9614
NSN 5935-00-893-8516
NSN 5990-00-001-4570
NSN 6685-00-526-9433
NSN 6150-01-104-4323