Standard RINGS, SEALING, CAST LEADED TIN BRONZE 80Cu - 16Sn - 5Pb 1980-01-01 HISTORICAL AMS7320C This specification covers a cast leaded-tin bronze in the form of sealing rings.
Standard RINGS, SEALING, CAST TIN BRONZE 80Cu - 19Sn 1980-01-01 HISTORICAL AMS7322C This specification covers a cast tin bronze in the form of sealing rings.