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 4140-01-139-4041
NSN 6130-01-098-9720
NSN 6240-00-669-6652
NSN 5895-01-653-1592
NSN 6610-00-260-1181
NSN 5920-01-429-0354
NSN 2925-01-415-0264
NSN 5855-01-073-1076
NSN 6650-00-789-4219
NSN 6645-00-429-0172
NSN 6645-00-004-8628
NSN 6320-01-362-4863