Plumbing connections

[Scott91370]

I'm in the process of putting the interiors back in my trailer and it's time to connect all the plumbing back up. It's all of the screw together joints that I'm working on. Since they're apart I'd like to replace the cone shaped rubber washer on off of them (it's only 10) just because I can.
I've been searching the Internet but I don't know the name of this part so it's making it kind of though. Does anybody have an idea of what they're called?

Thanks in advance!

[wags999]

you sure it's not pex ?

[Scott91370]

The lines are pex but the screw together fittings for the faucets, water heater and pump have a cone shaped washer. That's the part I'm hunting for.

[Grumpy]

They are cone washers.

[Scott91370]

Thanks for the input. I haven't been to the RV or Home Repair store yet. Hopefully they are standard and I can get them at one of those!

[John H]

I looked high and low for those washers as well; I finally found them at an RV dealer.

[bdreinv]

We have a neighbor who used brass compression fittings!

[Scott91370]

Originally Posted by John H

I looked high and low for those washers as well; I finally found them at an RV dealer.

Guess that will be my next stop. Thanks!

Originally Posted by bdreinv

We have a neighbor who used brass compression fittings!

I've already got fittings on the tubes and I'm not sure a brass fitting to the water pump would work right, would it?

[bdreinv]

Originally Posted by Scott91370

Guess that will be my next stop. Thanks!



I've already got fittings on the tubes and I'm not sure a brass fitting to the water pump would work right, would it?

No don't know I think my neighbor was using the 1/4" couplings.

[MccBob]

Are these what you need:
BrassCraft 3/8 in. O.D. Replacement Cone Washer for Copper Toilet Riser-01E - The Home Depot
Amazon has a assortment pack:
https://www.amazon.com/dp/B00L68FEWO...a-351212170551

[Scott91370]

Close but they have a little shoulder on them.
I will get a picture this evening - I forgot to bring it to work with me (which is bad because the shop I go to is just a couple miles up the road).

[wags999]

ace hardware carries these in a number of sizes...very standard item.