| Item | Part No. | Part Name | Qty | Serial No. |
| (723-48-20103) | VALVE ASS'Y | 21690- | ||
| (723-48-20102) | VALVE ASS'Y | 21290-21689 | ||
| (723-48-20101) | VALVE ASS'Y | 20805-21289 | ||
| (723-48-20100) | VALVE ASS'Y | 20001-20804 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-21A0. | ||||
| 723-40-66701 | VALVE ASS'Y | 20001- | ||
| 1 | \6\ | CASE | 20001- | |
| 2 | \6\ | SEAT | 20001- | |
| 3 | \6\ | SEAT | 20001- | |
| 4 | 708-8H-11530 | PLUG | 20001- | |
| 5 | 07002-11423 | O-RING | 20001- | |
| 6 | \6\ | SEAT | 20001- | |
| 7 | \6\ | BALL | 20001- | |
| 8 | \6\ | PLUG | 20001- | |
| 723-40-66601 | VALVE ASS'Y | 20001- | ||
| 9 | \6\ | CASE | 20001- | |
| 10 | \6\ | SEAT | 20001- | |
| 11 | \6\ | SEAT | 20001- | |
| 12 | \6\ | BALL | 20001- | |
| 13 | \6\ | PLUG | 20001- | |
| 14 | 01252-61045 | BOLT | 21719- | |
| 14 | 01252-61050 | BOLT | 20001-21718 | |
| 15 | 01643-51032 | WASHER | 20001- | |
| 723-40-60101 | VALVE ASS'Y | 20001- | ||
| 16 | \6\ | SLEEVE | 20001- | |
| 17 | \6\ | VALVE | 20001- | |
| 18 | \6\ | PISTON | 20001- | |
| 19 | \6\ | PISTON | 20001- | |
| 20 | \6\ | SPRING | 20001- | |
| 21 | 07000-12020 | O-RING | 20001- | |
| 22 | 07001-02020 | RING,BACK-UP | 20001- | |
| 23 | 709-25-11390 | O-RING | 20001- | |
| 24 | \6\ | SPRING | 20001- | |
| 25 | \6\ | PLUG | 20001- | |
| 26 | \6\ | O-RING | 20001- | |
| 27 | \6\ | SEAL | 20001- | |
| 28 | \6\ | O-RING | 20001- |