Originally Posted by WatchThis!
A D ring is something total different. D rings are used on slings to hold more then one chain/cable tougher and they are one solid piece of metal. "Shackles"or a clevis is what we have hanging off of the tabs on our bumpers. A few do have D rings made into them but not many.
This. Carabiners are sometimes called D rings. Through my time in the military I've always known the "recovery attachment devices" as either shackles or Clevis w/ Clevis pin.
The illustration below shows what I know as D rings.