LASCO SB-1 9/16-Inch x 24 Thread Faucet Seat for American Standard Brand Faucets, 3/8-Inch, Brass, 2-Pack Brass faucet seat 9/16-Inch x 24 threads x 3/8-Inch in length Fits American Standard brand faucets Original equipment manufacturer number 174-14 Faucet replacement part