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 4140-01-352-2924
NSN 6620-01-477-3720
NSN 5935-01-443-2935
NSN 5925-00-566-4169
NSN 5975-00-111-1226
NSN 6645-01-407-0204
NSN 6145-01-629-8226
NSN 6610-00-104-7518
NSN 6650-00-891-9850
NSN 5930-01-649-7128
NSN 6150-01-359-3107
NSN 5985-01-451-0689