GMB 666
Pardon me if I am a bit slow in understanding, in my experience most aircraft manufacturers quote full Aeroquip part numbers in their IPC where that is what they specify.
If you are making up a new hose for a new STC then I can understand your question.
Probably your best bet is to approach one of the contacts at the following link for assistance.
http://www.hydraulic-supply.com/html/rrlocal.htm