Funny Foster fitting ( male / female connect )

Peashooter

Member
Apr 9, 2021
3,772
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Denmark
So i got my friend all the parts to make a 90 deg bend fill probe, just like i use myself on the Two to not have the tethered line come strait off the end of the barrel / reservoir / pipe.
In my friends case though he have a fill port on the bottom of a rifle and so with no bend the rifle fit poorly in his rest.

Anyway. Put it together, and wouldn't you know the male fitting in the end we connect to our fill lines, well my friend could not connect to it, and i had the same problem.
Mind you this was in the shot shed in 11 deg C temperatures, but just now in my 20 deg C apartment, there is absolutely no problem connecting to my fill line, so it sit right now with 275 BAR on it ( plugged off ) to see if it leak while i take a bath.

Funny 10 deg C temperature can make such a difference, even if i am aware of cryo crimping or whatever its called in English, when you fit a heated and a cooled part together with a tight tolerance, then 10 deg C,,,,, damn.
Not knowing the exact tolerances in a foster fitting connection, but i would assume it is not 1/100 mm or less, which is about my guestimate on change in size in that small metal with 10 deg C temperature drop / rise.

Tomorrow + Tuesday,,,,, mesa gone shooting again, and i need revenge for the poor 500 - 600 shot count from my last session. So bringing 2000 pellets / slugs CUZ i got holes to make. :D

BTW these be fittings from Huma, so i dont think it is cheap knockoffs.