Widespread faucets, either metal spout or Integral spout:
Stems can be either splined top 86-101HC or square top 86-121HC.
Seats are 23-X15
Bibb Washers are 65-A323
Ceramic Escutcheons are 79-S293K
Ceramic handles are 86-090H hot and 86-230C cold.
Metal handles are 65-851.
Valve unions, 15-CRU

Integral spout parts only
Connector, 15-CRCA
Rubber seal only, 15-CSEAL

Drain, 24-CD