Where 5-hole restrictor plate is used, its real dimensions, and how to connect it to other keg fittings.
Updated 05 September 2026.
Stout faucet restrictor disc (5-hole restrictor plate)
Where 5-hole restrictor plate is used, its real dimensions, and how to connect it to other keg fittings.
Published dimensions
- Designation
- 5-hole restrictor plate
- Size / thread
- internal disc, typically with five small holes, sized to the stout faucet body
- Fitting form
- internal flow-restricting disc
- Seals on
- sits captive inside the stout faucet, not a threaded joint
- Rating / role
- the part that de-gasses nitro beer as it is forced through its small holes
Used on: inside a stout or nitro faucet; some kits offer discs with different hole counts to tune the pour.
The restrictor disc is not a threaded fitting, it is a captive plate inside the stout faucet with a handful of small holes that shear the beer. Aftermarket creamer or aerator kits offer discs with different hole patterns so you can tune head density, but they only fit a faucet built to take a restrictor.
Flare fittings seal on the 45 degree flare face and must never be taped. Push-in fittings seal on an O-ring against the tube wall and need the tube cut square. Barbs seal under a worm clamp. Getting the sealing method right matters more than the thread label, because most homebrew leaks are a taped flare or an unclamped barb.
Connect this fitting
Questions and answers
What is the designation of the Stout faucet restrictor disc (5-hole restrictor plate)?
5-hole restrictor plate
What is the size / thread of the Stout faucet restrictor disc (5-hole restrictor plate)?
internal disc, typically with five small holes, sized to the stout faucet body
What is the fitting form of the Stout faucet restrictor disc (5-hole restrictor plate)?
internal flow-restricting disc
What is the seals on of the Stout faucet restrictor disc (5-hole restrictor plate)?
sits captive inside the stout faucet, not a threaded joint