HW100 O-Ring Size?

[MP44]

Anyone know the size of the o-ring that goes on the stem the cylinder screws on?

 

[rjos3ph]

Thickness 1.78mm, id 2.57mm ,od 6.13mm

 

[MP44]

Thanks! 

On the sites selling o-rings, this size is listed as a 005, is that correct?

 

[aussiegav]

Yes 005 is the correct size.Yo use he same size inside the main valve. You will see it listed as a 2.78X1.78 or 2.57x178 but 005 is right.

 

[rjos3ph]

https://www.ebay.com/itm/WEIHRAUCH-HW100-Polyurethane-PTFE-O-Ring-seal-service-kit/272582488177?hash=item3f772eb071:m:meEwlKfAfGwL47EdcGTBKvA

yes 005. I just order the kits from ebay, in case you are interested.

 

[MP44]

"rjos3ph"
https://www.ebay.com/itm/WEIHRAUCH-HW100-Polyurethane-PTFE-O-Ring-seal-service-kit/272582488177?hash=item3f772eb071:m:meEwlKfAfGwL47EdcGTBKvA
yes 005. I just order the kits from ebay, in case you are interested.

How long do un-used/still in the package 0-rings last? I would be interested in purchasing this rebuild kit but since the gun is new, it might be many years before they are needed. 

 

[rjos3ph]

Good question, made me curious. According to the all knowing Google the nitrile are 15yrs, polyurethane 5yrs. But polyurethane is more durable and is perfect for the o ring you are looking for.