| Manufacturer | Designation | nickname |
|---|---|---|
| Douglas | P2D | |
| Hall | P2H | |
| Martin | P2M | |
| Sikorsky | P2S | |
| Lockheed | P2V | Neptune |
| Consolidated | P2Y | |
| Boeing | P3B | |
| Douglas | P3D | |
| Martin | P3M | |
| Lockheed | P3V | Orion |
| Consolidated | P3Y | Catalina |
| Martin | P4M | Mercator |
| Naval Aircraft Factory | P4N | |
| Consolidated | P4Y | Corregidor |
| Martin | P5M | Marlin |
| Convair | P5Y | |
| Martin | P6M | Seamaster |
| Convair | P6Y | |
| Boeing | PB | |
| Douglas | PD | |
| Grumman | PF | |
| Hall | PH | |
| General Aviation | PJ | |
| Keystone | PK | |
| Martin | PM | |
| Naval Aircraft Factory | PN | |
| Sikorsky | PS | |
| Lockheed | PV | Harpoon |
| Consolidated | PY | |