| | SM 4504U | | HO-U CORE BARREL HEAD ASSEMBLY |
| 1 | SM 2516 | | SPEARHEAD POINT | 1 |
| 2 | SM 2517 | | COMPRESSION SPRING | 1 |
| 3 | SM 2518 | | DETENT PLUNGER | 1 |
| 4 | SM 4516 | HO/PO | SPEARHEAD BASE | 1 |
| 5 | SM 2520 | | SPIROL PIN 7/16″ x 1-3/4″ | 1 |
| 6 | SM 4537 | HO-U | LATCH RETRACTING CASE | 1 |
| 7 | SM 4518 | | SPRING PIN 1/2″ x 2-3/4″ | 2 |
| 8 | SM 4538 | HO-U | COMPRESSION SPRING | 1 |
| 9 | SM 4519 | | WASHER | 1 |
| 10 | SM 1524 | | BOLT 3/8″ – 16UNC x 3/4″ | 1 |
| 11 | SM 4539 | HO-U | UPPER LATCH BODY | 1 |
| 12 | SM 4522 | HO | LATCH | 2 |
| 13 | SM 4540 | HO-U | LINK | 2 |
| 14 | SM 3518 | | SPRING PIN 1/2″ x 2″ | 1 |
| 15 | SM 25301 | | VALVE PISTON | 1 |
| 16 | SM 4542 | | SPIROL PIN 1/4” x 2-3/4” | 1 |
| 17 | SM 2552 | | LANDING INDICATOR BUSHING | 1 |
| 18 | SM 4543 | HO-U | ADAPTER | 1 |
| 19 | SM 4544 | HO-U | SEAL | 2 |
| 20 | SM 4545 | HO-U | SEAL SEAT | 1 |
| 21 | SM 4524 | HO | LANDING SHOULDER | 1 |
| 22 | SM 4525 | | LOWER LATCH BODY | 1 |
| 23 | SM 4527 | | HEX NUT 1-1/4” UNC G8 | 1 |
| 24 | SM 4528 | | SPINDLE | 1 |
| 25 | SM 4529 | HO | SHUT-OFF VALVE | 2 |
| 26 | SM 4530 | HO | VALVE ADJUSTING WASHER | 2 |
| 27 | SM 4531 | | THRUST BEARING | 2 |
| 28 | SM 4532 | | SPINDLE BUSHING | 1 |
| 29 | SM 3532 | | HANGER BEARING | 1 |
| 30 | SM 4533 | HO | COMPRESSION SPRING | 1 |
| 31 | SM 4534 | | LOCKING NUT | 1 |
| 32 | SM 4535 | | INNER-TUBE CAP | 1 |
| 33 | SM 1549 | | GREASE FITTING | 1 |
| 34 | SM 2529 | | BALL 22mm | 1 |
| 35 | SM 3538 | | CHECK VALVE BODY | 1 |
