Reddit reviews 417 Buna-N O-Ring, 70A Durometer, Round, Black, 3-1/2" ID, 4" OD, 1/4" Width (Pack of 10)
We found 2 Reddit comments about 417 Buna-N O-Ring, 70A Durometer, Round, Black, 3-1/2" ID, 4" OD, 1/4" Width (Pack of 10). Here are the top ones, ranked by their Reddit score.
Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbonsCan be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)Round in cross-section to provide a seal between cylindrical overlapping surfacesDurometer (hardness) of 70A for resistance to penetrationMeets standards defined by Aerospace Standard AS568A
I bought 8 kegs once years back and 2 were missing parts, it was quite the research project to get them up to snuff. 2 liquid posts, poppets, 2 lids, gas dip tube. I replaced all gaskets. I had to replace half a dozen poppets and 3 pressure release valves. All up is was another $100 or so.
Make sure you note the make/model when you buy your posts, the lids are pretty much all the same unless they're racetrack (yours are not), universal poppets from rightbrew work great. Lids, relief valves and posts I found on Adventures in Homebrewing, the posts will depend on gas or liquid (they are different!) and your keg model.
You can get bulk o-rings on amazon for dirt cheap instead of paying a few dollars per keg and swap them out often. Posts, diptubes, and lids have these 3 sizes.
https://www.amazon.com/gp/product/B000FMYR9S/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B0051XYDYU/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B000FMYRBG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Get yourself some spark plug/deep sockets, you need a 7/8 and an 11/16 most likely, get the star shaped ones, you will need them on some of yours (usually the gas post, gas post has notches in the base). Fiddling with a crescent wrench is a nightmare.
Found these in my amazon purchase history, they fit my gas and liquid posts (pin lock, but I think ball lock is the same).
I think these work for the lids, but I don't think these are the exact ones I bought.