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 5990-01-068-1651
NSN 6240-01-309-1806
NSN 4140-01-382-7965
NSN 6650-01-061-9101
NSN 5975-01-631-4091
NSN 6645-01-590-5534
NSN 5895-01-116-7656
NSN 5975-01-034-8983
NSN 5915-01-263-1880
NSN 5835-01-248-6688
NSN 6150-01-643-0338
NSN 6135-00-763-5793