The Secretary of the Treasury may prescribe reasonable manufacturing tolerances for specifications in
section 5112 of this title (except for specifications that are limits) for the dollar, half dollar, quarter dollar, and dime coins. The weight of the 5-cent coin may vary not more than 0.194 gram. The weight of the one-cent coin may vary not more than 0.13 gram. Any gold coin issued under
section 5112 of this title shall contain the full weight of gold stated on the coin.