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 4140-00-871-3000
NSN 5920-01-468-4705
NSN 5975-01-253-8207
NSN 5910-01-223-0139
NSN 5920-01-550-5868
NSN 5990-01-621-2788
NSN 5855-00-014-5008
NSN 6110-00-902-1702
NSN 5975-01-087-8641
NSN 5895-01-659-9343
NSN 5910-01-362-0722
NSN 6145-01-246-7506