US O-Ring kit Retailers?

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Dirte

Dirte

Member
May 21, 2016
1,027
42
Washington, United States
With all the topics on leaks.....It sounds like a good idea to keep o-ring kits for each of my guns. I see European retailers sell them but not many come up for America. I would prefer to get a whole kit rather than piece something together and pay lots of shipping. I own a FX Royale 400 and a AA S510. Even though I would prefer a kit, It would be nice to have a o-ring database section on the forum with the amount of search hits for the subject.
 
Very good point - I see lots of concerns about obtaining suitable 'O' rings from US Airgunners (on this and other Forums).

As the majority of airguns are made to Metric specs. you would think someone would offer a Metric 'O' ring box (ie: a variety of rings suitable for airguns in a plastic box).

I have heard that McMaster-Carr (whatever) stock Metric rings and most 'radio-control' shops have them as well (in the US).

I've never understood why the OEM's dont issue little kits of rings for their rifles as a 'paid for, extra option' (probably something to do with protecting the repair side of sales).
 
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I spent several hours tracking donwn proper size and material of the Hatsan 44 fill probe.
I posted the information somewhere (thought it was here, but may have been PRE AGN. Seems like the source was McMaster Carr, but I have lost size and material designation.

Funny thing, I went to fill the AT 44 this week and noticed the fill probe black O rings rather than the clear square O rings that came with it and it worked fine with VERY light application of silicone (dive shop) and no leaks. Maybe the search for the "exact" replacement was a waste of time.

Before purchasing the silicone grease I was dinging up the O rings and getting leaks fairly often which was the reason for my search in the first place.

I have to go to BNA this week for some welding supplies and am going to inquire about a nitrogen tank. I will post the results of that discussion when I get back. I am pumping now, but am concerned about moisture. The moisture trap for the chinese pump I have goes on the high pressure side and thus does NOT protect the pump.
 
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Hunting for the correct numbers and crossovers is a daunting task. With metric depending on where in the world they came from....... They have literately thousands of sizes. I have made a lot of o'rings with a splice kit to get by on other equipment I have worked on. I have several of the "basic" o'ring kits. Not much is the same. We are dealing with 3000psi plus. Close doesn't generally do it. The direct fit kits are cheap and available in the UK, just not the US.
 
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Linsfreak,
I have what appears to be exactly the same kit as you !

Unfortunately they were within my Tractor Spares heap (er section) some looked 'possibly useful' but as there were no apparent markings on the box I wasn't sure if they were for the Massey-Fergusons or what :)


In fact I have two boxes like that (but 4 M-F Tractors ??).
 
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"hasenpfeffer"Horror Fright stocks O-ring assortments in SAE and metric and in two or three different materials. You probably won't have a use for 90% of them, but they're only a few bucks per box.
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They also carry HNBR O Ring kits. I am wondering if any of the sizes readily available in the Harbor Freight Kits will be well suited for breech seals for my Ruger Blackhawk Elite springer, or either of my Crosman NPS TR77 or Nitro Venom??
 
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