***Solved***Help me identify this mystery ring.

[dcmdon]

***The answer is that its a washer for the feathering shaft of one of my RC Helis. ***
Thanks to all those who contributed.

Hi all.

So I was cleaning up my work bench and found the mystery ring in this photo. Its the lighter colored ring.

I've put an AR15 extractor O ring next to it for reference. The size on the caliper is the OD of the ring. Its 4.50mm or .177 inches. It is non magnetic and appears to be made out of some kind of fiber. It is very thin. Like a washer.

Any help identifying where this came from would be greatly appreciated.

Don

 

[ColdDayInHell]

You buy any guns recently?

 

[SteelShooter]

View attachment 91695

 

[whatluck]

That's a washer for mounting motherboards to a computer chassis.

 

[weehooker]

Airgun seal maybe?

 

[dcmdon]

not an airgun seal. I've got an air pistol, but I just shoot it and lube it occasionally. Ive never had it apart.

Whatluck - good thought, but I've never had a computer anywhere near my workbench.

I'm wondering if it could be a shim for something.

 

[CWulf]

Part to a flux capacitor? You don't happen to own a DeLorean do you?

 

[dcmdon]

Part to a flux capacitor? You don't happen to own a DeLorean do you?

No, but my Yugo has been running a little rough lately.

 

[jake]

do you do any electrical work on the bench?

 

[dcmdon]

Damn. Yes.

I've rebuilt a couple of electric RC Helicopters. I think thats it.

 

[BostonVI]

That's a washer for mounting motherboards to a computer chassis.

I'll second this. Is it bendable or pretty rigid?

 

[KMS]

It's an insulation washer for electronics,I have a whole bag of those,they stick to everything.

 

[dcmdon]

Its rigid.

I also just checked it for conductivity. My Fluke reads into the mega-ohm range and it still showed as an open circuit when put on each side of the washer. So its pretty much a perfect insulator.

Its .017 thick.

Thanks KMS
I'm thinking now that its some kind of standoff insulator for one of the itty bitty 4 in 1 boards that one of the smaller helis has.

 

[SJan]

Damn. Yes.

I've rebuilt a couple of electric RC Helicopters. I think thats it.

That was my guess when I saw the pic, feathering shaft washer

 

[dcmdon]

That was my guess when I saw the pic, feathering shaft washer

EXACTLY!!!!

Those things stick to everything.

Thanks all Mystery Solved. I was originally concerned it was a gun part, but as the conversation turned I realized that wasn't the case.

 

[white feather]

I'm thinking now that its some kind of standoff insulator for one of the itty bitty 4 in 1 boards that one of the smaller helis has.

Does it have lights that look like this?

Are you missing one?
White Feather

 

[jake]

or it is just a capture washer that is used on duplex 110v outlets. keeps the mounting screws attached until installation...

 

[Rob Boudrie]

or it is just a capture washer that is used on duplex 110v outlets. keeps the mounting screws attached until installation...

Aren't capture washers generally square?

 

[jake]

not always, different manufacturers, have seen square, round- black, red, brown, etc, even had metal clips years ago...

 

[dyer01905]

Does it have lights that look like this?

Are you missing one?
White Feather

Oh god here we go again lmao.

 

[Cabinetman]

Have you replaced the filter in your oil tank recently? It looks like the fiber washer which replaces the one for the screw vent on the top of the canister. Possible?

Rome

 

[Synyster]

Doh I am an idiot. Redacted.

 

[slap shot]

Do you own a Dremel?

 

[swampy]

A vent screw gasket for a heating oil tank filter.

 

[99105]

For a carburetor jet, perhaps

 

[Hikes]

Do you own a Dremel?

That's what I was thinking...looks like the washers that are used on the arbor for the cut off discs.

Sent from my SCH-I545 using Tapatalk

 

[45collector]

In.

(for the AR extractor o-ring. I'll rekarmafy the red thingy due to it being useless to me.)

 

[slap shot]

That's what I was thinking...looks like the washers that are used on the arbor for the cut off discs.

Sent from my SCH-I545 using Tapatalk

Yeah, i was cutting off a pin while pinning a muzzle break today and i noticed little red washers on most of the attachments. looked like the OP pic.

 

[dcmdon]

Do you own a Dremel?

I do. I know what you are getting at. When you break the cutoff wheel, the part that is left under the screw looks just like that.

But its not one of those. The answer has been found. Its a washer for the feathering shaft on one of my RC helis. Even though it could certainly be an insulating washer based on its properties.

 

[45collector]

Its a washer for the feathering shaft on one of my RC helis.

You're building spy drones aren't you? EPIC.