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 6620-00-280-2874
NSN 5915-00-054-6637
NSN 5920-01-612-8212
NSN 6650-00-923-4192
NSN 5935-01-500-0511
NSN 6130-00-072-7205
NSN 5935-00-173-4419
NSN 6240-00-756-5149
NSN 2925-01-218-5556
NSN 5996-00-798-7589
NSN 6620-00-837-9484
NSN 4140-01-340-0675