Mattoon head o-rings

[rjayb]

Have to place an order at work with my o-ring supplier this week.  Anyone know the exact sizes of FKM O-rings for Keith's head.  My best guess is 045 for the outers, 039 for the domes, and the small ones around the plugs 026.  Thanks for the help

[camatv]

if you stock o-rings do you have one of those cone thingy's/ the ones around the domes must be viton also. 

[n2otoofast4u]

They just gotta be close. You can stretch/push to make them fit. BUT, with a pair of calipers and a measuring cone (dont know legit name) you should be able to get what you need.

[rjayb]

We don't buy a lot of o rings, just a few sizes for certain valves we sell. About once a year we have a big enough order for prepaid shipping at Parker. Thought someone might know the part numbers. 10-4 on FKM all around.