View Full Version : O-ring question

06-03-2006, 07:52 PM
This may be a dumb-ass question, but are all O-rings the same size? What I am getting at, can I use the same O-ring for a tank that I can use for a barrel?


06-03-2006, 08:03 PM
The o-rings are the same size but not all the same material and yes they are the same size as the tank o-ring.

This is from Otter's website so thank him before you thank anyone else.

Part Dimensions Material
Fat Striker (Older Spyders) 5/8"x3/4"x1/16" Polyurethane
Slim Striker (Newer Spyders, Red in color) 9/16"x11/16"x1/16" Polyurethane
ESP Striker 9/16"x11/16"x1/16" Polyurethane
Valve 9/16"x11/16"x1/16" Nitrile or Buna-N
Bolt 9/16"x11/16"x1/16" Polyurethane
Barrel 9/16"x11/16"x1/16" Nitrile or Buna-N
Vertical Adapter 9/16"x11/16"x1/16" Nitrile or Buna-N
Gas through grip or Expansion chamber 9/16"x11/16"x1/16" Polyurethane
Tank 9/16"x11/16"x1/16" Polyurethane

06-03-2006, 10:03 PM
they're all pretty much the same ... go to www.mcmaster.com and put in o-ring for the search go for number 15 on the dropdown .. then click on buna-N, standard, and then there you go !! :) cheap and great

100 for 3.06 excluding shipping, and since you have the newer spyder (slim striker) it'll fit all

06-04-2006, 07:29 AM
Thanks for the info!!!

06-04-2006, 12:00 PM
Thats a great site ooglieboogliebob! I just ordered 100 O-rings! Thanks for sharing that with us!

06-04-2006, 05:13 PM
haha np ... i get most of my o-rings from there ... although i'll havta order more #15's ...

06-04-2006, 05:25 PM
yep, good site- thanx bob. added it to my favorites list.