Lot numbers for Part Numbers: 900HC451 (lot #s: 011001 to 011016), 900HC451T (lot #s: 011024 to 020517), HC451A (lot #s: 020523 to 040907), HC452A (lot #s: 031215 to 060503) & HC452F (lot #s: 040719 to 041102)
Lot numbers for Part Numbers: HC405A (lot #s: 020930 to 060410) , HC405SL (lot #s: 040225 to 040325), HC405U (lot #s: 030922 to 060217), HCHC406A (lot #s: 050830 to 060123), HC406SL (lot #s: 051021 to 051220), HC407A (lot #s: 031124 to 060207), HC407SL (lot #s: 040921 to 060202) & HC407U (lot #s: 040407 to 060113)