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 6645-00-551-8291
NSN 6130-01-322-5590
NSN 5925-01-510-2600
NSN 4140-01-026-1856
NSN 6105-01-479-2174
NSN 6220-01-512-0144
NSN 6685-01-219-5080
NSN 6150-00-764-5809
NSN 2925-00-441-8252
NSN 6320-00-831-2227
NSN 5990-01-463-2279
NSN 5930-01-618-0946