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 6620-01-160-0439
NSN 6130-00-952-0819
NSN 5910-00-400-7124
NSN 2925-00-144-6405
NSN 5975-01-188-7901
NSN 5855-01-660-9717
NSN 5990-01-287-1682
NSN 5950-01-358-9299
NSN 5855-00-962-5792
NSN 6150-01-153-2796
NSN 5930-00-381-6878
NSN 5835-00-733-9145