Help identyfieng a wheel and a hatch ?

[WRanG]

Anyone who knows what these 2 items come from.
any help appreciated.

The wheel



The hatch

[steverobertsbbc]

Given that the hatch has an external hinge, an internal locking mechanism and appears to be armour thick, I'd suggest that it's a spent cartridge port cover from a tank. But I'm afraid I don't know what from.

[steverobertsbbc]

Ah, think I've found the hatch now. PzKpfw IV, just next to the return rollers. Not sure if they're fuel filler hatches? I was thrown by what I thought was an internal locking mechanism, then I realised that there are flats on the external bolt head, allowing it to be opened and shut with a spanner.

http://data3.primeportal.net/tanks/d...v_01_of_97.jpg

[steverobertsbbc]

Here in a different position on a PZ IV at Kubinka: imgp2502 -