Spotted this set on ebay this AM. Just in case you have to work on your submarine you might want to look into this set. a little expensive but it looks like a nice set.
http://www.ebay.com/itm/RARE-Antique-TAC-1951-Navy-Submarine-Wrench-Stuffing-Terminal-Tube-Rachet-Set-/221108404719?pt=Architectural_Garden&hash=item337b1681ef
Interesting, thought tubing appliance Corp only made aurcraft stuff, makes sense tho...
We had a nice submarine, was going to be part of a museum, but some futzwitt left the hatches open in the rain and it sank...
There was so much water damage, they ended up scrapping it :(
Some very teardrop Proto/Plomb looks on some of those.
T.A.C. became part of the Proto empire in the mid 1950s.
EvilDr235