[Richard Farrant]

Originally Posted by BCA

Robin,
The format of your part numbers indicate that they likely represent a transition numbering system used from the mid-1940's and possibly as late as the mid-1950's. Apparently an attempt was made to assign a standardized or "neutral number" (hence NEU as part of number) to numbers used by the wide range of military suppliers.
Since this numbering system is quite dated then the material referred to would not likely be suitable for modern fuels. I will try to trace these numbers in a cross-reference book and maybe come up with a manufacturer's part numbers.
As discussed in a previous thead it would be interesting to hear from anyone with more information about this little-known numbering system.
...... Brian

Hi Brian,

This is a British stock number system dating back to the War. LV is still the prefix for parts under the NSN system with us, think it stood for Land Vehicles. The number in question is a common used part over a wide range of vehicles, so rather than it coming under the vehicle makers prefix, it is given the component makers part number, in this case AC as it is a part from a petrol pump, the number is their commercial part number. From memory, the LV/NEU numbers were asigned to parts for non-British vehicles, maybe refering to Lend Lease (?), whereas British AC parts for instance, would be prefixed 6MT...

Hope this helps

regards, Richard