FX FX MKII O-Rings

[Spokane2303]

What O-Ring selection should I keep on hand for a "new to me" MKII Impact .30 cal.?

I've looked up all the sizes and want to order only what is most likely to normally fail from use?

 

[bigHUN]

For my two airguns, also I serviced some friends airguns as well, I ordered a full bill of materials from oringsandmore.
A well over thousand orings sorted by sizes in ziploc bags sorted by rifles.
And a multiple page excel spreadsheet, updating frequently so I know what and how many orings I have.
Nothing extraordinary here, just prepared ...

 

[Spokane2303]

Just what I want to do!

I have a surplus of o-rings for my regulated .177 Marauder; and, I want the same for my "new to me" FX MKII Impact..

 

[Spokane2303]

A question to FX Impact owners?

Can I substitute NBR 90 o-rings for the 2 PUR 90 o-rings specified for the MKII Impact?

 

[Revoman]

I had made a spreadsheet some years ago (2022) and it still is valid as I just ordered some O-RIngs for an M3 (I also have an M2).
It is attached here if you wish to use it. If you improve it, please lemme know so that I can make the changes.
It opens in Microsoft Excel by the way.
Mike

View attachment FX Impact MK2 and MK3 O-Rings 2022-03-06.xlsx

 

[Spokane2303]

Thanks so much!

 

[SilentSquirrel]

I had made a spreadsheet some years ago (2022) and it still is valid as I just ordered some O-RIngs for an M3 (I also have an M2).
It is attached here if you wish to use it. If you improve it, please lemme know so that I can make the changes.
It opens in Microsoft Excel by the way.
Mike

View attachment 433361

@Revoman
Thats a very functional spreadsheet, I must say.
Tell me please!
Have you had success using the fractional equivalents of the FX metric O rings?
Thanks
Edward

 

[Clifton]

I ordered from Oringsandmore also. 25 pcs of each. Reg adjustment O rings have gone bad on my two of my FX's and use the same PN. They are tiny.

 

[Revoman]

SilentSquirrel --=--
"Tell me please!
Have you had success using the fractional equivalents of the FX metric O rings?"
I input the "INCH" equivalents in case MM were not available. I have yet to have the need to actually use one as the vendors stock the MM sizes....so far.
I figured that if one was at a match and needed an O-Ring, perhaps the local hardware store might only carry INCH sizes, thus, the input.
Mike

 

[SilentSquirrel]

SilentSquirrel --=--
"Tell me please!
Have you had success using the fractional equivalents of the FX metric O rings?"
I input the "INCH" equivalents in case MM were not available. I have yet to have the need to actually use one as the vendors stock the MM sizes....so far.
I figured that if one was at a match and needed an O-Ring, perhaps the local hardware store might only carry INCH sizes, thus, the input.
Mike

Nice idea
Thanks

 

[bigHUN]

....Have you had success using the fractional equivalents of the FX metric O rings?"....

Not good. Usually the inch fraction equivalent is far off from metric sizes. Just do the math check it yourself...
The oring groves - depend of the application - are designed for orings max 10% morphing. We play HPA here I would not take alternates or shortcuts, but it is your money...

 

[Revoman]

bigHUN --=--
As stated in my last reply.
The INCH O-Rings have been input in case there are NO MM'S AVAILABLE. I don't necessarily condone using them in lieu of the MM, but if you're in a pinch without the exact MM available, you might be able to use an INCH to get yourself by.
Mike