LOL, I remember taking Flight Rations as my pack lunch on a school outing in 1982 or 1983. The Flight Rats were dated 1946 or 1947, my dad brought a case home for emergencies since the Department of Civil Defense was throwing them out. I think the spaghetti would have been perfectly fine if I'd warmed it up (although middle America's idea of what constituted spaghetti in 1946 was kind of pathetic). The peaches were fantastic.

Expiration dates on canned goods are a crock. Look for a bulge to see if it's gone bad.