The numbers pictured don't seem to represent Spitfire P/Ns. I only have access to a limited number of drawings and only work on one model, the type 394 or Mk XVIII so my knowledge may be a bit limited, also I'm in the USA so anything I say British based should be taken at your own risk.
The early Spit numbers do start with 300 and if that part was changed or was a new part for a later model it would increase. Spit Mk XVIII was 394.
A part number would typically be 5 digits with a / and then another number such as 300XX/5 as an example. The XX numbers would pertain to a system, airframe area. You could have a 30044, 35144, 39444 ect. Same system or airframe area but different model.
The /XX number then becomes more specific and the Spare Parts Manual would refer to a drawing sheet number that would list that part and what system or airframe part it is installed in.
There is also parts for items not made by Supermarine but installed by them, engines and such. Typically they will also have an AM or Air Ministry stamp embossed with a part number.
Don't know how many things would have a serial number in addition to a P/N.
What type of part is this?
Welcome aboard and good luck.
Last edited by
51fixer on Sat Aug 20, 2011 10:50 am, edited 1 time in total.
