| Item | Part No. | Part Name | Qty | Serial No. |
| 20B-60-21300 | VALVE ASS'Y | 1501- | ||
| 1 | \6\ | BODY | 1501- | |
| 2 | \6\ | SPOOL | 1501- | |
| 3 | 20B-60-21330 | END | 1501- | |
| 4 | 20B-60-21340 | O-RING | 1501- | |
| 5 | 20B-60-21380 | SEAL | 1501- | |
| 6 | 20B-60-21370 | SPRING | 1501- | |
| 7 | 20B-60-21360 | COVER | 1501- | |
| 8 | 20B-60-21350 | COVER | 1501- | |
| 9 | 20B-60-21390 | BOLT | 1501- | |
| 10 | 20B-60-21410 | PLUG | 1501- |