I posted this query in the RAF Abbreviations thread a couple of weeks ago, but it seems to have passed everyone by, so I thought I'd try on the main Forum.

I've got three unit abbreviations I've come across in relation to casualties, if anyone can help:

30 M. Party - casualty is buried in India, died February 1945 (Maintenance Party?)
N.U.K. - casualty commemorated on the Singapore Memorial, died March 1942. May U.K. just mean Unknown...?
H.Q. A.U. - casualty buried in Hanover War Cemetery, died September 1945

Many thanks.