| 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 | 723-46-15111 | CASE | B31800- | |
| 723-46-18500 | CASE SUB ASS'Y | B31800- | ||
| 2 | \6\ | CASE | B31800- | |
| 3 | \6\ | PISTON | B31800- | |
| 4 | \6\ | SEAL | B31800- | |
| 5 | 723-46-15630 | PLUG | B31800- | |
| 6 | 07000-13024 | O-RING | B31800- | |
| 723-46-18600 | CASE SUB ASS'Y | B31800- | ||
| 7 | \6\ | CASE | B31800- | |
| 8 | \6\ | PISTON | B31800- | |
| 9 | \6\ | SEAL | B31800- | |
| 10 | 723-46-15630 | PLUG | B31800- | |
| 11 | 07000-13024 | O-RING | B31800- | |
| 12 | 07430-71380 | O-RING | B31800- | |
| 13 | 702-16-53920 | O-RING | B31800- | |
| 14 | 01252-60820 | BOLT | B31800- | |
| 15 | 723-46-17350 | BOLT | B31800- |