| Item | Part No. | Part Name | Qty | Serial No. |
| 702-21-26002 | VALVE ASS'Y | 1021- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-11A0 AND Y1660-12A0. | ||||
| 709-10-53300 | VALVE ASS'Y,RELIEF | 1021- | ||
| 1 | \6\ | SLEEVE | 1021- | |
| 2 | 07000-23032 | O-RING | 1021- | |
| 3 | 07001-03032 | RING,BACK-UP | 1021- | |
| 4 | 07002-25234 | O-RING | 1021- | |
| 5 | \6\ | RING,SNAP | 1021- | |
| 6 | \6\ | VALVE | 1021- | |
| 7 | \6\ | SPRING | 1021- | |
| 8 | \6\ | SEAT | 1021- | |
| 9 | \6\ | O-RING | 1021- | |
| 10 | \6\ | RING,BACK-UP | 1021- | |
| 11 | \6\ | POPPET | 1021- | |
| 12 | \6\ | SPRING | 1021- | |
| 13 | \6\ | RETAINER | 1021- | |
| 14 | \6\ | HOLDER | 1021- | |
| 15 | \6\ | O-RING | 1021- | |
| 16 | \6\ | NUT | 1021- | |
| 17 | \6\ | SCREW | 1021- | |
| 18 | \6\ | NUT | 1021- | |
| 19 | \6\ | O-RING | 1021- |