5310-00-167-4164 (2093D8)
NSN 5310-00-167-4164 (NIIN 00-167-4164) is a convex washer in Federal Supply Class 5310, Nuts And Washers — a washer which is round with a centrally located hole. Manufacturer part number 2093D8 (Curtiss-Wright Controls, Inc., CAGE 0AHP5).
Key specs: 36 to 40 rockwell c hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required). Supersedes 5310-00-209-5167 (1966).