| 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 | \6\ | SPOOL | 1001- | |
| 2 | 723-26-16180 | PLUG | 1003- | |
| 2 | 723-26-15480 | PLUG | 1001-1002 | |
| 3 | 07000-11003 | O-RING | 1001- | |
| 4 | 07001-01003 | RING,BACK-UP | 1001- | |
| 5 | 709-25-11290 | SEAL | 1001- | |
| 6 | 723-26-15820 | PLATE | 1001- | |
| 7 | 124-43-64160 | PLATE | 1003- | |
| 7 | 723-26-15880 | SEAL | 1001-1002 | |
| 8 | 700-22-11291 | RETAINER | 1001- | |
| 9 | 700-80-61260 | O-RING | 1001- | |
| 10 | 723-26-15410 | CASE | 1001- | |
| 11 | 723-26-15770 | PLATE | 1001- | |
| 12 | 723-26-15780 | PLATE | 1001- | |
| 13 | 723-26-15790 | PLATE | 1001- | |
| 14 | 700-22-11520 | RETAINER | 1001- | |
| 15 | 700-22-11510 | SPRING | 1001- | |
| 16 | 700-22-12250 | PLUG | 1001- | |
| 17 | 700-22-12440 | DETENT | 1001- | |
| 18 | 700-22-12480 | GUIDE | 1001- | |
| 19 | 700-84-11730 | BALL | 1001- | |
| 20 | 723-26-14170 | SPRING | 1001- | |
| 21 | 700-21-11210 | PLUG | 1001- | |
| 22 | 700-22-12270 | PLUG | 1001- | |
| 23 | 700-22-11610 | RING,SNAP | 1001- | |
| 24 | 01252-60625 | BOLT | 1001- | |
| 25 | 01252-60620 | BOLT | 1001- |