Type of washer

[dwaindigital]

Hi Team,

I have a leaky radiator as it washer must of got damaged when it was fitted

Anyone know what this washer is called? And where I can find a pack?
It has a chamfer or bevel to it

Outer diameter 23mm
Inner diameter 20mm

Please respond if you know the answer to this question rather than alternative responses


Thanks in advance

 

[cjg]

buy a new one complete at screwfix

 

[ShaunCorbs]

Ptfe tape