assuming the item numbers are unique, a VLOOKUP
should get you the information you need.
first value would be =VLOOKUP(E1,A:B,2,FALSE)
, and the same type of formula to retrieve the second value would be =VLOOKUP(E1,C:D,2,FALSE)
. Wrap them in an IFERROR
if you want to return anything other than #N/A if there is no corresponding value in the item column(s)