Drilled holes are in the center of drive points
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 6320-01-493-4472
NSN 5930-01-626-5443
NSN 6240-01-371-0978
NSN 6150-00-360-1508
NSN 6110-01-200-7447
NSN 5915-00-190-6207
NSN 2925-01-480-8273
NSN 6645-00-420-5072
NSN 6240-01-537-0629
NSN 5835-00-389-2816
NSN 6610-01-304-3226
NSN 5975-00-753-7669