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 5855-01-040-0107
NSN 6240-00-079-1759
NSN 5920-00-146-5071
NSN 5975-00-246-4906
NSN 5985-01-621-6584
NSN 5996-00-467-4196
NSN 5975-00-099-9312
NSN 6610-01-496-3321
NSN 5835-00-987-9341
NSN 5985-01-272-4116
NSN 5855-01-382-5169
NSN 5990-01-174-6851