| Item | Part No. | Part Name | Qty | Serial No. |
| (723-51-10101) | CONTROL VALVE | 1001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-06A0. | ||||
| 723-30-90201 | VALVE ASS'Y,RELIEF | 1001- | ||
| 1 | \6\ | SLEEVE | 1001- | |
| 2 | \6\ | HOLDER | 1001- | |
| 3 | 700-80-51630 | SCREW | 1001- | |
| 4 | \6\ | RETAINER | 1001- | |
| 5 | \6\ | POPPET | 1001- | |
| 6 | \6\ | SEAT | 1001- | |
| 7 | \6\ | VALVE | 1001- | |
| 8 | 700-80-51350 | RING | 1001- | |
| 9 | 700-80-51390 | SPRING | 1001- | |
| 10 | \6\ | SPRING | 1001- | |
| 11 | 700-13-31161 | O-RING | 1001- | |
| 12 | 700-80-51190 | RING | 1001- | |
| 13 | \6\ | O-RING | 1001- | |
| 14 | \6\ | RING,BACK-UP | 1001- | |
| 15 | 07002-03334 | O-RING | 1001- | |
| 16 | 07239-12410 | NUT | 1001- | |
| 17 | 07002-02434 | O-RING | 1001- | |
| 18 | 07000-02011 | O-RING | 1001- | |
| 19 | 01582-11411 | NUT | 1001- | |
| 20 | 723-63-31880 | PLUG | 1001- | |
| 21 | 07002-13634 | O-RING | 1001- | |
| 22 | 07000-12018 | O-RING | 1001- | |
| 23 | 07001-02018 | RING,BACK-UP | 1001- |
