| Item | Part No. | Part Name | Qty | Serial No. |
| (723-13-12301) | VALVE ASS'Y | 1001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1663-01A0 T0 Y1663-06A0. | ||||
| 1 | \6\ | SPOOL | 1001- | |
| 2 | 723-11-18150 | O-RING | 1001- | |
| 723-10-17802 | VALVE ASS'Y,RELIEF | 1001- | ||
| 3 | \6\ | SLEEVE | 1001- | |
| 4 | \6\ | NUT | 1001- | |
| 5 | \6\ | SCREW | 1001- | |
| 6 | \6\ | O-RING | 1001- | |
| 7 | \6\ | SPRING | 1001- | |
| 8 | 07002-12434 | O-RING | 1001- | |
| 9 | \6\ | POPPET | 1001- | |
| 10 | 723-11-18160 | RING | 1001- | |
| 11 | 723-11-18150 | O-RING | 1001- | |
| 12 | \6\ | FILTER | 1001- | |
| 13 | \6\ | PLUG | 1001- |