| Item | Part No. | Part Name | Qty | Serial No. |
| 234-61-31200 | VALVE ASS'Y,PILOT CHECK | 21001- | ||
| 1 | 232-06-56210 | HOUSING | 21001- | |
| 2 | 232-60-56120 | PLUG | 21001- | |
| 3 | 07002-13334 | O-RING | 21001- | |
| 4 | 07000-13022 | O-RING | 21001- | |
| 5 | 232-60-56130 | SPOOL | 21001- | |
| 6 | 07000-12012 | O-RING | 21001- | |
| 7 | 232-60-56140 | BOLT | 21001- | |
| 8 | 01583-12012 | NUT | 21001- | |
| 9 | 232-60-56150 | COLLAR | 21001- | |
| 10 | 135-60-12152 | VALVE | 21001- | |
| 11 | 234-60-16240 | SPRING | 21001- | |
| 12 | 232-60-16343 | VALVE | 21001- | |
| 13 | 232-60-16430 | SLEEVE | 21001- | |
| 14 | 234-60-16360 | VALVE | 21001- | |
| 15 | 07000-12021 | O-RING | 21001- | |
| 16 | 07001-02021 | RING,BACK-UP | 21001- | |
| 17 | 234-60-16350 | SPRING | 21001- | |
| 18 | 232-60-16440 | PLUG | 21001- | |
| 19 | 232-60-16450 | NUT | 21001- | |
| 20 | 07002-13034 | O-RING | 21001- |