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 4140-01-147-6558
NSN 6150-01-446-6681
NSN 5990-01-483-7313
NSN 5990-01-154-7296
NSN 7035-00-173-2281
NSN 6105-00-173-6113
NSN 6320-00-331-7138
NSN 5985-01-144-8168
NSN 5855-01-501-5683
NSN 5910-00-615-4812
NSN 6240-00-827-0889
NSN 5935-00-452-9041