crwdns2893792:0crwdne2893792:0 Henry H ,
crwdns2893800:0crwdne2893800:0:
The part number you're looking for is 148000150; if you google that number you'll find several online retailers selling it. That said, you don't need a special tool to remove the brew head screen, any short phillips-head screwdriver will do the trick.
crwdns2892198:0crwdne2892198:0:
open