Raspy,
good post. Here are a few others

PSK - personal/pocket surival kit. Small tin or plastic container packet with survival items. Designed to be on person at all times.

FAK - First Aid Kit. No explanation needed.

SAK - Swiss Army Knife. Otherwise known as the Victorinox. If you looking for a pen knife these are as good as they get (personal opinion*)

ratpack - abbreviation for rationpack.

Reinhardt