Tuning Classic Leshiy fill port cover spring size.

I have bought two used Classic Leshiy's and neither have had the spring and ball that allow the fill port cover to index into an open or closed position.

I have extra balls but no springs.

Looking the Russian to English translation of their spare parts page they only list an LS.620.004 spring. Part number 3 in picture below. Not sure how that relates to sizing.

Leshiy Spring.1609360029.PNG


And here is the link to the parts page.

http://www.edgun.ru/repair-parts/leshiy/kl000000-01-4-5-dlinnyy-colored-leshiy/

It is the same part listed for the safety spring and ball listed further down in the link above so I could remove that and measure it but if somebody happens to have the spring size I'd rather not do that. I've been having some inner ear issues this fall/winter and one of the related issues is inconsistent blurry vision so I don't really feel like removing a functional small part if I don't have to.

Thanks in advance.