McMaster Keg O-Ring List

[BrewThruYou]

$4.43 for shipping $30 worth of o-rings. Shipping took 1-day. NJ to PA.

 

[724b]

McMaster is very fast and cheap. They must have some special deal with UPS.

 

[Schalk79]

Thanks for the info... The o-ring models listed work perfect on our ball lock kegs...

We just scored a good deal on 40 ball lock kegs.
Pretty sure all of them will have to be rebuilt.

Which o-rings work best for the Pin Lock posts?

I buy o-rings from our local bearing suppliers. McMaster refuses to ship to South Africa and our local home brewing shops are a rip-off they charge $15 for s kit consisting of 2x post rings and 1 lid ring.

 

[barrooze]

Which o-rings work best for the Pin Lock posts?

I'm glad you asked. I've been meaning to post an update. I got my order of o-rings in a couple days ago and had ordered the slightly larger thickness for the pin lock post ring. I found that the slightly larger thickness (0.139", p/n: AS568A-205) is actually too big to fit in the post groove! Because the ring thickness is a couple thous too large, the ring doesn't actually fit inside the groove, making it impossible to fit the QD onto the post. I'm curious to see if the ring with a slightly smaller ID (p/n: AS568A-204) would force the ring into the groove better, but I'm not going to be trying this in the near future.

At this time, I recommend going with the listed Post ring size for Pin Lock posts.

Post O-rings Buna-N $2.15/100 - 9452K23 (liquid post)​

Post O-rings Silicone $10.71/100 - 9396K24 (gas post)​

 

[Schalk79]

Thanks barrooze... I will try the recommended o-rings

 

[Nightbiker]

Just wanted to add my thanks for this thread! I just placed an order for all of the O-rings (silicone all around -except for the beer posts -those got buna) for my kegs, and will have quite a few to put in my parts bins (grin -I HATE needing an O-ring and not having it).

 

[Nightbiker]

pretty fast service! I got 'em in 2 days. Wow it would be great if everyone offered service like that! Their seals are a really great bargain -a lot of their other stuff seems a bit high, but if (when) I'm in a pinch, I'll gladly pay a bit more for fast service. Can't believe the number of different O-rings/seals they offer! I think I'll stock up on some other ones for other things I have to re-seal from time to time.

 

[mredge73]

I received the my order based on this list. Thanks for the info.

I went to take my keg apart and I didn't have a new ring for the poppet valve (ball lock).
Anyone know what it is? Or is this different depending on manufacture?

This looks like mine:
http://www.amazon.com/dp/B006C4WJ1G/?tag=skimlinks_replacement-20

 

[barrooze]

Can't say what o-ring that is, but B&S has several different poppets available. You could see if they have one that makes a better seal for you. Worked for me!

 

[ocluke]

I received the my order based on this list. Thanks for the info.

I went to take my keg apart and I didn't have a new ring for the poppet valve (ball lock).
Anyone know what it is? Or is this different depending on manufacture?

This looks like mine:
http://www.amazon.com/dp/B006C4WJ1G/?tag=skimlinks_replacement-20

It depends on what style of keg you have. If you're just trying to replace the little ring on it, maybe someone else can chime in. If you want to go clean with a new poppet, there are several different versions at MidwestSupplies.

 

[danorocks17]

Has anyone had an issue using only Buna-N O-rings, instead of using silicone for the gas posts?

 

[barrooze]

I use regular Buna-N o-rings for both posts. They work fine. Haven't had many issues as long as the QDs aren't being shifted to the side.

 

[danorocks17]

I use regular Buna-N o-rings for both posts. They work fine. Haven't had many issues as long as the QDs aren't being shifted to the side.

good to know, thanks! I just hate to spend the money on silicone and have 200 post orings if I can jsut use the Buna-N only. I know that probably sounds cheap, but that's less money I can spend on beer haha

 

[danorocks17]

One more question on these o-rings. Does anyone know a part number for the replacement o-rings for universal poppets? I know that they can be replaced, I just can't find it anywhere what orings those would be.

 

[fifelee]

One more question on these o-rings. Does anyone know a part number for the replacement o-rings for universal poppets? I know that they can be replaced, I just can't find it anywhere what orings those would be.

Measure the cross section then the ID an use this chart or the Parker oring handbook which is the oring bible.

http://www.allorings.com/size_cross_reference_framed.htm

parker oring handbook

 

[dcHokie]

I just ordered this whole lot and everything checks out perfectly on my ball-locks, really helpful thread guys, thanks!

Also a huge kudos on McMaster Carr's delivery, less than 18 hours from order!

 

[724b]

I haven't used them yet, but I ordered #008 Silcone Orings for my universal poppets based on recommendations from an HBT thread discussing these. Mcmaster part number 9396K13.

One more question on these o-rings. Does anyone know a part number for the replacement o-rings for universal poppets? I know that they can be replaced, I just can't find it anywhere what orings those would be.

 

[milldoggy]

Anyone have any idea what the part number for this oring might be? It is the oversized one for leaky kegs.
http://www.williamsbrewing.com/KEG-LID-SEALING-O-RING-P58C78.aspx

 

[adivito]

I ordered all my orings from oringsandmore.com I went all silicone to be safe. Silicone rings #'s 109, 111, and 417. If these aren't correct someone please say so I ordered a bunch at one time and an going off memory

 

[milldoggy]

Has anyone ever used these for the lid? They are only 3/16s cross section, but they are quad seals. Maybe they will be better for a leaky keg.
http://www.mcmaster.com/#90025K551

or these yellow ones? I read they may be softer and larger.

http://www.rcbequip.com/item5101.ctlg

 

[danorocks17]

Finally ordered my o-rings yesterday at around 4:30, got them around 2:30 today. That is fast shipping! thanks for compiling this list gremlyn

 

[zymurph]

McMaster is awesome in terms of shipping, but they are pretty pricey. I just ordered everything except the -417 (the lid o-ring) from O-ring warehouse for much cheaper. I still have to get the -417 from Mcmaster, but it's always good to save a little.

 

[Nightbiker]

McMaster is awesome in terms of shipping, but they are pretty pricey. I just ordered everything except the -417 (the lid o-ring) from O-ring warehouse for much cheaper. I still have to get the -417 from Mcmaster, but it's always good to save a little.

those the silicone O-rings, or the buna ones? I always opt for the (more expensive) silicone ones. Don't mind saving a few bucks though.

 

[zymurph]

They were the silicone ones. $0.03 apiece for all except the post o-rings (-111), which were $0.05. They have a minimum of $5 per item, so I ended up with quite a few (167) of each, but still cheaper than McMaster for more of them. They also have a pretty slick order interface. My apologies too; I totally sound like I work for their marketing department.

 

[Nightbiker]

No need to apologize for letting everyone know about a bargain! I'm certainly going to add them to my list of resources! Next series of days off, I'll see if I can compile a similar list to the one from McMaster for their O-rings. Makes life easier. Right now, except for the lid rings, I have enough to last (of both silicone and buna) for a pretty long time.

 

[bumstigedy]

Cool. Great post!

 

[ocluke]

They were the silicone ones. $0.03 apiece for all except the post o-rings (-111), which were $0.05. They have a minimum of $5 per item, so I ended up with quite a few (167) of each, but still cheaper than McMaster for more of them. They also have a pretty slick order interface. My apologies too; I totally sound like I work for their marketing department.

Too bad they don't have the silicone lid o-rings. Those are the expensive ones at $2.22 per o-ring. On that topic, the OP might want to update the current pricing on the various products. The silicone lid o-rings show $7.88 for a 5-pack, when they are currently at $11.09.

 

[ocluke]

Has anyone ever used these for the lid? They are only 3/16s cross section, but they are quad seals. Maybe they will be better for a leaky keg.
http://www.mcmaster.com/#90025K551

or these yellow ones? I read they may be softer and larger.

http://www.rcbequip.com/item5101.ctlg

I'd be interested to hear about those quad seal o-rings for the lid as well. If they fit like the quad seal post o-rings, that would be great. Those post o-rings are exceptional at sealing. They seal even with a basic hand tightening.

 

[Veedo]

theres been a bunch of chatter lately of leaky kegging systems due to post o rings sized wrong for pin locks. i went through this earlier this winter, and ordered the rings up listed in this post, but they just arent big enough. so if anyone has pin lock kegs and are having problems with gas leaks, or worse yet, liquid, this is the size that worked for me:

3/32 thick
1/2 id
11/16 od

if you wiggle your post and you hear gas leaking, you need bigger o rings. hope this helps.

oh and if anyone is looking for ball lock o rings, i have a whole bag of them sitting here, will trade for hops, etc.

 

[raouliii]

... 3/32 thick
1/2 id
11/16 od
.....

Those specs match the #112 o-rings found here: #112 Silicone - 9396K25

I haven't tried them but plan to.

The #111's are the ones listed in the master post of this thread.