| Formula | System | Code | Alternate | Name | Suffix | Color Deck |
|---|---|---|---|---|---|---|
| 990NL5880 | 990 | L5880 | CUMULIS GRAY MET | A | ||
| 990NL8537 | 990 | L8537 | STONE GRAY MET | A | ||
| 990NLS036 | 990 | LS036 | FLEETWOOD GRAY | A | ||
| 990NLS117 | 990 | LS117 | LT GRAY | B | N23 | |
| 990NM1024 | 990 | M1024 | SAHARA GRAY MET | B | ||
| 990NMM137E | 990 | MM137E | MEDIUM NEUTRAL MET | B | ||
| 990NN2593 | 990 | N2593 | STEEL GRAY MET | J | MG30 | |
| 990NN5598 | 990 | N5598 | UNION PACIFIC RR GRAY | B | ||
| 990NN5598-A1 | 990 | N5598 | A1 | U P GRAY | B | |
| 990NNCR01 | 990 | NCR01 | NCR CHARCOAL | B |