American Standard Flushvalve #50 | Noels Plumbing Supply

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Black plastic actuator unit black rubber disc copper and brass screws brass seat greyy rubber gasket and polished chrome trip lever with brass arm.

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09/19/2025

$99.47

The American Standard 3156.031 (also referred to as part 3156031) is an vintage #3 or #50 Curtin “Coffee Can” style flush valve, primarily used in older American Standard one-piece toilets from the 1970s and 1980s.

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American Standard Rebuild Kit for Curtin Flushvalve

#50 3156.031 Old #3

Coffee Can Style Flushvalve for Old 1 Piece Toilets
It is designed for old one-piece toilets, specifically those using the Curtin #50 or the #3 coffee can style flush valve system.

Related document

American Standard 47087-0700 Parts Breakdown

This kit replaces the obsolete “coffee can flushvalve”