| Item | Part No. | Part Name | Qty | Serial No. |
| 702-21-01530 | VALVE ASS'Y | 1601- | ||
| 702-21-01520 | VALVE ASS'Y | 1001-1600 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-11A0 AND Y1660-12A0. | ||||
| 1 | \6\ | BODY | 1001- | |
| 2 | \6\ | SPOOL | 1001- | |
| 3 | 07040-13016 | PLUG | 1001- | |
| 4 | 07002-23034 | O-RING | 1001- | |
| 5 | 700-93-11241 | PLATE | 1001- | |
| 6 | 702-13-35170 | SPRING | 1001- | |
| 7 | 702-13-21180 | COVER | 1001- | |
| 8 | 07000-F3050 | O-RING | 1601- | |
| 8 | 07000-23050 | O-RING | 1001-1600 | |
| 9 | 01010-81250 | BOLT | 1001- | |
| 10 | 01602-21236 | WASHER,SPRING | 1001- | |
| 11 | 702-13-36281 | POPPET | 1001- | |
| 12 | 702-13-36270 | SPRING | 1001- | |
| 13 | 702-13-36291 | SEAT | 1001- | |
| 14 | 07000-F2021 | O-RING | 1601- | |
| 14 | 07000-22021 | O-RING | 1001-1600 | |
| 15 | 07001-02021 | RING,BACK-UP | 1001- | |
| 16 | 702-21-24250 | ORIFICE | 1001- | |
| 17 | 07000-F3022 | O-RING | 1601- | |
| 17 | 07000-23022 | O-RING | 1001-1600 | |
| 18 | 07001-03022 | RING,BACK-UP | 1001- | |
| 19 | 702-13-36240 | PLATE | 1001- | |
| 20 | 01010-81035 | BOLT | 1001- | |
| 21 | 01602-21030 | WASHER,SPRING | 1001- | |
| 22 | 07378-10500 | HEAD | 1001- | |
| 23 | 07000-F3022 | O-RING | 1601- | |
| 23 | 07000-23022 | O-RING | 1001-1600 | |
| 24 | 07371-30500 | FLANGE,SPLIT | 1001- | |
| 25 | 01010-80830 | BOLT | 1001- | |
| 26 | 01602-20825 | WASHER,SPRING | 1001- | |
| 27 | (709-80-53200) | VALVE ASS'Y,RELIEF | 1001- |