Does anyone know what the letters at the end of the mercury part number mean? Sometimes it will have an A or T. What would be the difference from a T02 or a T07?

the only thing i can find is from Perfprotechs website which says:

• “C” (Casting)
• “A” (Assembly)
• “Q” (Quicksilver Items)
• “T”
• “K” (Mainly Service Maintenance Related Items)
• “A1″
• “A 1″ (Note the character space after the A and before the 1)
• “1″
• ” 1″ (Note the character space before the 1)