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 4140-00-189-0235
NSN 6135-01-448-4680
NSN 6150-00-841-1486
NSN 5910-01-091-3920
NSN 5950-00-190-6414
NSN 5935-00-729-8962
NSN 5835-01-642-4705
NSN 5950-00-035-8791
NSN 6150-00-774-6782
NSN 5855-00-472-2055
NSN 6620-00-252-6425
NSN 6645-01-578-6815