Replacement for American Standard 57281-07 Bibb Seats, 10 Pack
Brass bibb seats, 1/2 in. x 20 thread and 7/16 in. tall, for American Standard Colony three-handle tub and shower valves and other American Standard compression faucets.
Replaces these part numbers
| OEM part numbers | Aftermarket equivalents |
|---|---|
| American Standard 57281-07 Seats in the American Standard 780100 ten-count kit | Danco #44 (30043E) Lasco SB-8 BrassCraft SCB0831X |
Will it fit?
Fits
- American Standard Colony three-handle tub and shower valves
- Hot, cold and diverter positions on the same valve
- Other American Standard compression faucets that take the 57281-07 seat
Not compatible with
- The 7/16 x 24 Aqua Seal seat
- 9/16 x 18 seats and any 1/2 x 24 seat
- Shorter 5/16 in. and 3/8 in. tall 1/2 x 20 seats used by other brands
- Single-handle pressure-balance valves and ceramic disc cartridge faucets
- Valve bodies with a seat cast into the body (not removable)
Is this your part?
Pull the handle and stem and back the old seat out with a seat wrench. Match three things: 1/2 in. x 20 thread, 7/16 in. tall, 9/16 in. across the face. At 7/16 in. it is the tallest of the common 1/2 x 20 seats. A seat of the same thread that is 5/16 in. or 3/8 in. tall belongs to a different brand's valve.
When to replace it
The tub spout or showerhead drips no matter how hard the handle is turned, water weeps past the handle, or a fresh stem washer stopped the drip for a week and then it came back. That pattern is a grooved seat face, not a bad washer.
Specifications
| FourHome part | 4HBS80716 |
|---|---|
| UPC | 850054895912 |
| Thread | 1/2 in. x 20 TPI |
| Height | 7/16 in. |
| Face | 9/16 in. across |
| Material | Machined brass |
| Quantity | 10 seats |
What is in the box
- 10 brass bibb seats
- Seat wrench, stem washers and thread sealant are not included
How to install it
Time: 5 to 10 minutes per seat. Tools: Seat wrench, Screwdriver, Adjustable wrench, Thread sealant or PTFE tape.
- Shut off the water and open the faucet to bleed pressure.
- Pull the handle and the stem.
- Seat the wrench squarely in the socket so it does not round out, and back the old seat out counterclockwise.
- Put thread sealant or PTFE tape on the new seat.
- Thread it in until snug, then stop. An overtightened brass seat can strip the pocket, and a stripped pocket means replacing the valve.
- Reassemble, restore water and check every handle.
Questions
Does one seat fit all three handles?
Yes. The same seat serves the hot, cold and diverter positions on a Colony three-handle valve.
How many valves does a 10 pack cover?
Ten seats rebuild three complete three-handle valves with one left over, or cover ten single-side repairs.
Do you sell the Colony stems?
Yes. FourHome sells replacements for the American Standard 72855-0700 long stem, 50729-0700 short stem and 50772-0700 short diverter stem.
Is a seat wrench included?
No. You need a seat wrench that fits the socket in the seat.
Related parts
FourHome is not affiliated with or endorsed by any faucet manufacturer. Brand names and part numbers are used only to identify compatibility.