| 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. | ||||
| 723-40-66701 | VALVE ASS'Y | B31800- | ||
| 1 | \6\ | CASE | B31800- | |
| 2 | \6\ | SEAT | B31800- | |
| 3 | \6\ | SEAT | B31800- | |
| 4 | 708-8H-11530 | PLUG | B31800- | |
| 5 | 07002-11423 | O-RING | B31800- | |
| 6 | \6\ | SEAT | B31800- | |
| 7 | \6\ | BALL | B31800- | |
| 8 | \6\ | PLUG | B31800- | |
| 723-40-66601 | VALVE ASS'Y | B31800- | ||
| 9 | \6\ | CASE | B31800- | |
| 10 | \6\ | SEAT | B31800- | |
| 11 | \6\ | SEAT | B31800- | |
| 12 | \6\ | BALL | B31800- | |
| 13 | \6\ | PLUG | B31800- | |
| 14 | 01252-61045 | BOLT | B31800- | |
| 15 | 723-40-60101 | VALVE ASS'Y | B31800- | |
| 16 | 07000-12020 | O-RING | B31800- | |
| 17 | 07001-02020 | RING,BACK-UP | B31800- | |
| 18 | 709-25-11390 | O-RING | B31800- |