Found it! Hex Spacer 1/4" x 1-3/4" - F-F #6-32 taps - Steel chromed

[Fubar]

Stern reference 254-5008-10.

Can't seem to find any in stock in the UK

Anyone got one of these spare please? Pinballshop.nl have them but I don't fancy €10 shipping for the one part!

Edit: ended up ordering from Marco.

 

[Fubar]

Anyone? Alternatively if you're going to order something from pinballshop.nl I'd be happy to share some of the shipping costs