| Item | Part No. | Part Name | Qty | Serial No. |
| KBB0853-01148 | RELIEF VALVE ASS'Y | B20001- | ||
| 1 | \6\ | HOUSING | B20001- | |
| 2 | \6\ | POPPET | B20001- | |
| 3 | \6\ | SEAT | B20001- | |
| 4 | \6\ | SEAT | B20001- | |
| 5 | \6\ | SPRING | B20001- | |
| 6 | \6\ | PLUG | B20001- | |
| 7 | \6\ | O-RING (K1) | B20001- | |
| 8 | \6\ | GUIDE | B20001- | |
| 9 | \6\ | O-RING (K1) | B20001- | |
| 10 | \6\ | SCREW | B20001- | |
| 11 | \6\ | NUT | B20001- | |
| 12 | \6\ | O-RING (K1) | B20001- | |
| 13 | \6\ | RING (K1) | B20001- | |
| 14 | \6\ | O-RING (K1) | B20001- | |
| 15 | \6\ | RING¤ BACK-UP (K1) | B20001- |