Harrier GSE
Hi Guys.
This adaptor you are trying to find is part of a Kit of items.
The equipment is known as a:-
Turner Adaptor Kit, Part No 772 Series consist of:-
Regulators 2 off.
Pressure gauges 2 off.
Hose assembly.(A/C Type).
Adaptors as required.(A/C Type).
The Regulators<I believe come with 3/8 BSP inlet threads to attach to Ground Bottle Trolley Hose.
The kit is conained in a metal box and is issued from stores for operator use,so the chances of finding the odd adapter is slim.
You may be able to find a kit but you need to confirm the adaptor is provided in the kit,this kit is been in use for a least 35+ years.
Toppy