O-rings for FX rifles in .22

Forums Other Parts, Accessories, & Equipment O-rings for FX rifles in .22

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    Ravenred
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    Member

    i have asked this question before and gotten some good answers. I need a list of O-rings for FX  rifles  I currently have a wildcat, impact, streamline, and bobcat.  All in 22  and would love to know if anyone knows O-ring sizes that commonly go bad.  I have a link to the O-ring store but have no idea what sizes to order.  Someone sent me a schematic of the wildcat once before but the ring sizes don’t correspond to the O-ring store.  Either that or I’m too dumb to figure it out. Either way if anyone has figured it out  they would be my hero! 

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    shutik
    Participant
    Member

    First, you look at the parts diagram on FX site, here is the link to Impact:

    http://www.fxairguns.com/wp-content/uploads/2017/09/impact-view-Sammans%C3%A4ttning-09-20.pdf

    All orings will be metric and will specify hardness of rubber in the description, example: C38 19731 O -ring 2×1 NBR 90

    C38 is the location on the diagram, 19731 is internal part number, 2×1 means 2mm diameter and 1 mm cross section, NBR 90 means hardness, Buna 90

    So when you go to search for this oring, you go to metric-b90-orings category first, then filter by cross section, 1mm, then find outer diameter 2mm

    Also helpful post https://www.airgunnation.com/topic/oring-database-what-im-doing/

    Hope this helps.

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    Wizard
    Participant
    Member

    Here are your O-rings for the Bobcat.

    Here is a list of  FX Bobcat Mark II O-ring sizes, quantities needed, and the parts numbers for Maryland Metric. They do not show the O-rings for .177 or the .25 but do for the .22 and .30 for the breach. 
     
     
     
    NBR 70
    11354      4.0×1.5              qt. 1
    10719      5.28×1.78          qt. 3
    11377      6.0×2                 qt.1
    11394      7.5×2                 qt. 1
    10721      7.66×1.78          qt. 1.
    11118     10.1×1.6             qt. 2
    11452     11.0×1.5             qt. 1
    10799     13.95×2.62         qt. 2
    11551     18.0×4.0             qt. 2
    11668     30×2                   qt. 2
    O-ring sizes for regulator is  2.9X1.78 (1)  6.07X1.78 (1)  7.66X1.78 (1)  11.6X2.4 (2)
     
     
    NBR  90
    15831     2.5×1.5                qt. 2
    15867     8×1                      qt. 1
    15687     9.3×2.4                qt. 2
    16028     28×3                    qt.1
     
     
    Barrel end 20mm x 1
     

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