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 5998-00-528-2352
NSN 5996-01-565-8951
NSN 5915-00-421-7825
NSN 6650-01-288-3276
NSN 5999-00-407-7118
NSN 5975-00-453-9662
NSN 6145-01-067-5226
NSN 5895-00-966-5573
NSN 5975-01-198-5615
NSN 6220-01-038-8292
NSN 2925-01-026-1000
NSN 6650-01-429-9242