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 5965-01-623-1408
NSN 6645-00-192-1152
NSN 5960-01-374-9706
NSN 7035-01-526-6775
NSN 5905-01-406-3815
NSN 4140-01-610-2974
NSN 5975-01-280-3556
NSN 5965-00-777-7037
NSN 5855-01-487-5048
NSN 5855-01-458-5163
NSN 5990-00-734-7285
NSN 6150-00-590-3454