Source for Plastic/nylon O-rings??

[ExPXGUY]

Have you though about using 1/2" or 3/4" D rings?

http://www.owfinc.com/hardware.html

[nothermark]

Or triangle rings. I would not use an O ring in that application. They are stressing the edge of the tape to get the round shape. A triangle or D ring would evenly load the webbing strap and let the harder/stronger metal part take the high point loads. These guys seem to have it covered:

http://www.usalanyards.com/plastic-rings.aspx

[VictoriaGuy]

Or triangle rings. I would not use an O ring in that application. They are stressing the edge of the tape to get the round shape. A triangle or D ring would evenly load the webbing strap and let the harder/stronger metal part take the high point loads. These guys seem to have it covered:

http://www.usalanyards.com/plastic-rings.aspx

Thanks for that link. They don't have the size I'm looking for, but useful stuff there.

RE: D-rings and triangle rings.
I've used these on gear (the type with the webbing slot are better, BTW) with stiff webbing, stitched close to the hardware. They work OK. With light grosgrain-type webbing, the webbing just 'wrinkles up into the corner', turning the hardware 'sideways', when a load is applied. A circular ring is actually better at spreading the load. Counter-intuitive, I know.

I'm also a bit dubious about using a D-ring with a toggle; I'd need to get some smaller D-rings and do some experiments, I guess.

I may end up just slicing rings off a piece of heavy hose of the right diameter.
I may also give Hilleberg a phone call, though repair shops generally don't like to sell their parts bins to customers! Also, $$$$, usually.

[ExPXGUY]

Might also check at JoAnns, they have some in the drapery area I think. They are not burly though and usually white.

I picked up some like you wanted somewhere but could not find them on my usual list of suppliers

[VictoriaGuy]

Might also check at JoAnns, they have some in the drapery area I think. They are not burly though and usually white.

I just got back from 'Michaels' where I looked at some 'cabone rings' which sound like the same thing. As you say, not burly, and they gave me the impression that they might be brittle with age and cold temps.
http://www.simplicity.com/c-729-cabone-rings.aspx

I picked up some like you wanted somewhere but could not find them on my usual list of suppliers

I've done that sort of thing myself- more than once!