5315-00-700-6820 (201749)
NSN 5315-00-700-6820 (NIIN 00-700-6820) is a headed straight pin in Federal Supply Class 5315, Nails, Machine Keys, And Pins — a headed, cylindrically-shaped item having a solid shank for fitting into corresponding holes, used for aligning or fastening. Manufacturer part number 201749 (Renk America LLC, CAGE 02978); also referenced as 7006820 (U S Army Tank Automotive Command).
Key specs: 26 to 32 rockwell c overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required).