| Item | Part No. | Part Name | Qty | Serial No. |
| (723-47-23600) | VALVE ASS'Y | B31800- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1663-01A0 TO Y1663-21A0. | ||||
| \6\ | BODY SUB ASS'Y | B31800- | ||
| 1 | 07000-12012 | O-RING | B31800- | |
| 2 | 723-11-19130 | O-RING | B31800- | |
| 3 | 723-46-17520 | RING | B31800- | |
| 4 | 07000-12021 | O-RING | B31800- | |
| 5 | 07000-13028 | O-RING | B31800- | |
| 6 | 07000-13032 | O-RING | B31800- | |
| 7 | 723-46-17510 | O-RING | B31800- | |
| 8 | 723-46-17530 | O-RING | B31800- | |
| 9 | 723-11-18150 | O-RING | B31800- | |
| 10 | 07000-12012 | O-RING | B31800- | |
| 11 | 07000-12021 | O-RING | B31800- | |
| 12 | 07000-13032 | O-RING | B31800- | |
| 13 | 07000-13036 | O-RING | B31800- | |
| 14 | 702-16-53920 | O-RING | B31800- | |
| 15 | \6\ | PLUG | B31800- | |
| 16 | 723-46-17650 | VALVE | B31800- | |
| 17 | 723-46-15150 | VALVE | B31800- | |
| 18 | 723-46-14150 | SPRING | B31800- |