| Formula | System | Code | Alternate | Name | Suffix | Manufacturer | Manufacturer Code | Manufacturer Name | Years |
|---|---|---|---|---|---|---|---|---|---|
| 990NP421 | 990 | P421 | GRAY | B | Dallman | GRAY | 2003 | ||
| 990NP422 | 990 | P422 | GRAY | B | Dallman | GRAY | |||
| 990NP423 | 990 | P423 | GRAY | B | Dallman | GRAY | |||
| 990NP425-A1 | 990 | P425 | A1 | GRAY | B | Dallman | GRAY | ||
| 990NP427 | 990 | P427 | GRAY | B | Dallman | GRAY | 2003 | ||
| 990NP428 | 990 | P428 | GRAY | B | Dallman | GRAY | 2003 | ||
| 990NP429 | 990 | P429 | LT GRAY | B | Dallman | Lt Gray | 2003 | ||
| 990NP430 | 990 | P430 | GRAY | B | Dallman | GRAY | |||
| 990NP431 | 990 | P431 | GRAY | B | Dallman | GRAY | 2003 | ||
| 990NPCG10C | 990 | PCG10C | COOL GRAY#10 | B | Dallman | Cool Gray#10 | 2003 |