Matrix / Runout (Side A runout etched [stamped]): NE-493-A-E-3H3 [stamped triangle with I AM stamped inside]
Matrix / Runout (Side B runout etched [stamped]): NE-493-B-E-2 [stamped triangle with I AM stamped inside]
Matrix / Runout (Variant 2): NE-493-A-E-2 (stamped. Triangle with I AM stamped inside)
Matrix / Runout (Variant 2): NE-493-B-E-3#2 (stamped. Triangle with I AM stamped)