| Item | Part No. | Part Name | Qty | Serial No. |
| (723-57-12306) | CONTROL VALVE | 72694- | ||
| (723-57-12305) | CONTROL VALVE | 65441-72693 | ||
| (723-57-12304) | CONTROL VALVE | 64647-65440 | ||
| (723-57-12303) | CONTROL VALVE | 64132-64646 | ||
| (723-57-12302) | CONTROL VALVE | 63415-64131 | ||
| (723-57-12301) | CONTROL VALVE | 62811-63414 | ||
| (723-57-12300) | CONTROL VALVE | 60968-62810 | ||
| (723-57-11303) | CONTROL VALVE | 59563-60967 | ||
| (723-57-11302) | CONTROL VALVE | 59163-59562 | ||
| (723-57-11301) | CONTROL VALVE | 57353-59162 | ||
| (723-57-11300) | CONTROL VALVE | 57000-57352 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1663-21A0 TO Y1663-33A0. | ||||
| 723-51-01700 | VALVE ASS'Y | 64132- | ||
| 723-51-01202 | VALVE ASS'Y | 63415-64131 | ||
| 723-51-01201 | VALVE ASS'Y | 57353-63414 | ||
| 723-51-01200 | VALVE ASS'Y | 57000-57352 | ||
| 1 | \6\ | BLOCK,VALVE | 57000- | |
| 2 | 144-14-54610 | O-RING | 57000- | |
| 3 | 723-56-31720 | O-RING | 57000- | |
| 4 | 723-56-31730 | O-RING | 57000- | |
| 5 | 702-75-11520 | O-RING | 57000- | |
| 6 | 07000-11008 | O-RING | 57000- | |
| 7 | \6\ | SPOOL | 64132- | |
| 7 | \6\ | SPOOL | 57353-64131 | |
| 7 | \6\ | SPOOL | 57000-57352 | |
| 8 | \6\ | PLUG | 57000- | |
| 9 | 07002-11223 | O-RING | 57000- | |
| 10 | 723-56-31211 | RETAINER | 57000- | |
| 11 | 723-36-14110 | SPRING | 57000- | |
| 12 | 723-56-31510 | CASE | 57000- | |
| 13 | 702-21-55450 | O-RING | 57000- | |
| 14 | 01252-60630 | BOLT | 57000- | |
| 15 | \6\ | VALVE | 57000- | |
| 16 | 723-56-41710 | SPRING | 57000- | |
| 17 | 723-26-15230 | PLUG | 57000- | |
| 18 | 07002-12434 | O-RING | 57000- | |
| 19 | \6\ | VALVE | 63415- | |
| 19 | \6\ | VALVE | 57000-63414 | |
| 20 | 723-56-41750 | SPRING | 57000- |