As the title says, I need the size for the breech O-ring for my .22 AA S410. I thought I had measured right, but no dice. Some help would be welcome!
Thanks,
John
well Air Arms is one of the few that list o-ring seal but not that one but after do some searching a found this
seem a little small but what i found
O-Ring Size Chart : The O-Ring Store LLC, We make getting O-Rings easy! (theoringstore.com)
my favorite o-ring source
and then this tread give you the size 5.5mm x 1.5mm which makes sense
AAS510 o-ring help. - Airguns & Guns Forum (gatewaytoairguns.org)
what would i do buy them both
Downloads | Air Arms (air-arms.co.uk)
good luck
mike
Hi, John - years ago I needed to replace Breach o-ring on my AA 410- I took the old o ring to Ace Hardware- was able to find replacement there & few spares, I don’t remember the size though.
I just had mine completely re-sealed by David Slade of Airgunwerks last winter-Would think if you sent him a email he would let you know the exact size.
You can figure out any oring dimension on the planet with a dial caliper. The only question is the hardness. Every one I've come across in an airgun is 70A.
Once you find your dimensions, match it up in either the USA or common metric charts:
https://www.allorings.com/o-ring-size-charts-index
Finding them locally is another fun challenge.
Thanks for the replies all!
John

