American Standard Screw on Disc | Noels Plumbing Supply

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Black rubber disc with bright brass threaded nut.

WHAT OUR CUSTOMERS SAY…

“After trying all over my area, I couldn't find the part for the faucet in my older house. The part I needed was found on the first try on their website and ordering was very easy. It was after hours, but someone responded to my text right away. The part was shipped the next business day. After putting the new part in the faucet works better than it has for years! ”

-Mark B.

06/25/2026

$5.87

The American Standard 73383-07, 73383-0700 or 73383-0700A is a replacement rubber seat disc designed for American Standard tilt-style toilet flush valves.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

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Crafted from heavy-duty, flexible premium rubber, this 3-inch replacement flush valve seal stops leaks right at the source. Thanks to its smart screw-on design, the seal disc actively pivots against the tilt-valve base to guarantee a perfect drop-in alignment with every single flush. The tool-free, screw-on design means you can easily thread off your hardened, old seal and snap this replacement disc directly onto the actuating unit within minutes.

73383-07 1022.27

Features a rubber disc with a brass threaded socket for screw-on installation.
Designed to fit small American Standard tilt flush valves and actuating units, specifically replacing part numbers like 73383-0700A.

Customer submitted image.