1MEHM55SX2A632062
1= Built in USA
ME = Mercury
H = F plus driver and passenger side air bags, curtains, or canopies (F=B plus driver and passenger air bags)
M55 = Sable
S = 3.0 Duratech
X = Check Digit
2 = Model Year (2002)
A = Atlanta Assembly
632062 = Sequential Number