| Item | Part No. | Part Name | Qty | Serial No. |
| (701-37-19003) | VALVE ASS'Y | 4001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-03A0. | ||||
| 701-31-73001 | HOUSING GROUP | 4001- | ||
| 1 | 701-31-69131 | HOUSING | 4001- | |
| 2 | 07000-23048 | O-RING | 4001- | |
| 3 | 01010-81290 | BOLT | 4001- | |
| 4 | 01643-31232 | WASHER | 4001- | |
| 5 | 01010-51495 | BOLT | 4001- | |
| 6 | 01643-31445 | WASHER | 4001- | |
| 709-10-52300 | VALVE ASS'Y,RELIEF | 4001- | ||
| 7 | \6\ | SLEEVE | 4001- | |
| 8 | 07000-23032 | O-RING | 4001- | |
| 9 | 07001-03032 | RING,BACK-UP | 4001- | |
| 10 | 07002-25234 | O-RING | 4001- | |
| 11 | \6\ | RING | 4001- | |
| 12 | \6\ | VALVE | 4001- | |
| 13 | \6\ | SPRING | 4001- | |
| 14 | \6\ | SEAT | 4001- | |
| 15 | \6\ | O-RING | 4001- | |
| 16 | \6\ | RING,BACK-UP | 4001- | |
| 17 | \6\ | HOLDER | 4001- | |
| 18 | \6\ | O-RING | 4001- | |
| 19 | \6\ | NUT | 4001- | |
| 20 | \6\ | POPPET | 4001- | |
| 21 | \6\ | SPACER | 4001- | |
| 22 | \6\ | SPRING | 4001- | |
| 23 | \6\ | RETAINER | 4001- | |
| 24 | \6\ | SCREW | 4001- | |
| 25 | \6\ | O-RING | 4001- | |
| 26 | \6\ | NUT | 4001- | |
| 27 | \6\ | RETAINER | 4001- | |
| 28 | 700-22-11370 | PLUG | 4001- | |
| 29 | 07002-22434 | O-RING | 4001- |