Yep, as stated by @eJar0k, I flew one with a J825R without issue. Took a Blackhawk 38 to ~12.5k ft AGL. I'm stretching a bit memory wise here, but IIRC they were made by RouseTech in 38, 54, 75, and maybe 98mm. They're certified closures, bar the 38mm that got decerted.