Is this an airplane part?

[CJWensleydale]

I know this is a long shot but my wife and I was out for a walk on an old bit of hard standing that used to be part of a WW2 fighter base when she found this old piece of aluminium in the long grass. It is some sort of cover or hatch, having a rudimentary hinge and two catches. There is also a serial number on what I presume to be the inside face that reads - B403729 - which lies underneath a small oval stamp with the numbers 0546 on the inside. While it is in a relatively poor condition, it appears to still have traces of military green paint on the outside.

Knowing my luck it will be the drain cover of some post-war portaloo but does anyone have any ideas?..

Thanks

CJ

 

[A4K]

Great find mate! could you please post some close up shots of the serial number stampings?
Cheers, Evan

 

[FLYBOYJ]

It's definitely from an aircraft. Cam lock fasteners lock it in place; the front portion is either hinged or slid under structure. The small clip with the hole in it probably had a small cable that attached it to the structure.

 

[Airframes]

First impression is the oil filler access panel on the port side of a Spitfire side engine cowling, but that's only a guess.

 

[CJWensleydale]

Here you are A4K - a close up of the stampings as requested. Thanks for the answers so far guys...

CJ

Quis Separabit

Vestigia Nulla Retrorsum

 

[MiTasol]

Thanks for detail photo - it certainly looks aircraft
I do not recognize the inspection stamp but my experience has mainly been on US aircraft - The camlocks are actually Dzus fasteners and common to both US and UK aircraft so that does not help unfortunately.
The part (not serial) number is a good clue and someone with experience on UK aircraft should recognise the base number/system (eg Spitfire part numbers for Mk v fuselage are typically around 30027-, Spit cowling around 30038- and for Beaufort typically around 85nnn)
Its not Bell, Boeing, Consolidated, Curtiss, North American, Republic or Vultee (nn-nnn-nnn or nn-nnnnn or similar style numbers for these companies) or Douglas or Lockheed (nnnnnnnnn with no prefix but sometimes a suffix letter or number) but beyond that I cannot say except nothing I have worked on

 

[A4K]

Sorry just noticed this post... Number looks like B103729 to me, smaller stamp C or 0, 3 or 5, 4, S or 6. Will see if I can dig anything up on the net.