No other part numbers with same form, fit, and function found.
A hardened cylindrical fastener with multiple spiral flutes on its shank. It also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.
NSN 4140-01-506-2479
NSN 5960-00-581-9719
NSN 5910-01-398-9568
NSN 5855-01-622-1516
NSN 5950-01-398-9094
NSN 6610-01-570-7550
NSN 6220-01-555-8332
NSN 5905-01-607-2984
NSN 6240-01-323-5386
NSN 6220-01-212-4088
NSN 5999-01-634-0576
NSN 5960-00-024-7386