While taking apart my SK86 clone, I accidentally broke the white plastic ring inside that sits on top of a metal washer and holds down the metal washer and the LED emitter star. Does Home Depot/Lowes/Orchard Supply have these rings? What would they be called?
This picture (not my pic) shows the white plastic ring in the middle.
Will the old ring glue back together?
That would have been a good idea, except I’ve already thrown away the small piece that broke off from the ring. There’s still enough of the ring left for now to hold down the metal washer. But if I shake the SK68 hard enough - for example, when I was testing for visible PWM - the ring will come loose.
I don’t think you’re going to be able to get a replacement ring, and definitely not at lowes homedepot etc because they dont sell flashlight parts. I would try to fashion something similar from a piece of plastic pipe or just use artic alumina thermal adhesive to adhere the led board to the pill.
This light is probably using a lattice bright led running at low amps, probably be fine just to superglue the led board and washer down instead of ordering a tube of artic alumina.
I’ve just shaved plastic/nylon washers to fit — get really thin ones, taper the edge slightly so the smaller diameter size goes in first.
The various SK68 clones I’ve had have used a wide variety of things pressed in over top of the LED — sometimes a thin plastic insulator with a metal washer over it, and that held down by a thin-walled ring. Sometimes a thin nylon or plastic washer just pressed in. Sometimes a very thin metal washer that actually crinkles when pushed down, over a plastic insulating layer. Seems like “anything handy” will do.
Those are some good ideas. It’s definitely a Lattice Bright LED, and I’m planning on replacing the LED and driver later on as my first step into the flashlight modding adventure. So if I can’t find a replacement ring or a substitute, oh well.
Hey Fryer, I wouldn’t put too much thought into it…just order another one next time you place an order with any of the overseas companies. They are only a few bucks. However, I have one just like what you picture, and I found that removing that metal ‘beauty ring’ got rid of some of the ugly beam rings. So, as a few others suggested, just glue the board down and be done with it. You could also roll up some JB weld and run it around like a ring and use something to weigh down the led and board while it dries.
Try gluing the remains of the stock ring together with epoxy. Use the old ring as a frame as you build up a slightly bigger ring on the inside.
These lights are so cheap, you’re unlikely to find a suitable replacement ring anywhere except by buying another SK68
Oh I know I can order another one for dirt cheap. This is more about me learning how to take apart and put a flashlight back together, and also how to replace the driver and LED star, and perhaps even further down the road, how to write my own driver firmware so I can create the perfect flashlight UI for me.
Learning all of this forces me to learn about the tools required to work with electronics, something I haven’t done before. For example, today I bought some snap-ring pliers so I can unscrew those retainer rings with the little holes. I also bought a cheap measuring caliper so I can measure the size of the LED star and learn how to buy the right one to fit inside an SK68.
So for this broken plastic ring, if I can find or make a replacement ring, I’ll have learned something new and added it to my mental arsenal of tricks. 
Welcome to the world of flashlight modding! 
SK68 is a decent place to start. It’s so cheap, you can wreck the whole thing and it’s no big loss.