| Item | Part No. | Part Name | Qty | Serial No. |
| (723-21-10101) | VALVE ASS'Y | 1003- | ||
| (723-21-10100) | VALVE ASS'Y | 1001-1002 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1661-01A0 TO Y1661-04A0. | ||||
| 1 | 723-20-62500 | VALVE ASS'Y,RELIEF | 1001- | |
| 2 | 700-22-11410 | O-RING | 1001- | |
| 3 | 700-80-64220 | RING | 1001- | |
| 4 | 07002-12434 | O-RING | 1001- | |
| 5 | 723-20-80100 | VALVE ASS'Y,SUCTION | 1001- | |
| 6 | 07002-12034 | O-RING | 1001- | |
| 7 | 723-46-15240 | PLUG | 1001- | |
| 8 | 07002-12434 | O-RING | 1001- | |
| 9 | 700-80-64220 | RING | 1001- | |
| 10 | 700-22-11410 | O-RING | 1001- |