Surface flat holes drilled on 2.500 in diameter bolt circle; surface flat holes, two 0.281 in. Diameter 180 degrees apart, one 0.250-20 nc tapped and evenly spaced between 0.281 in. Holes; drill and tap on the periphery surface 180 degrees from 0.250 in hole, one 0.312-18 nc hole flat bottom 0.469 in. To point
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 5895-00-310-0185
NSN 5835-01-111-0969
NSN 5998-01-373-6636
NSN 6650-01-591-3342
NSN 5950-00-094-5526
NSN 4140-00-964-8623
NSN 5910-00-992-9860
NSN 6220-01-476-7939
NSN 6650-01-426-4253
NSN 5935-01-112-8425
NSN 5990-00-149-8181
NSN 6130-00-277-7321