| | SM 2504U | | BO-U CORE BARREL HEAD ASSEMBLY |
| 1 | SM 02516 | | SPEARHEAD POINT | 1 |
| 2 | SM 02517 | | COMPRESSION SPRING | 1 |
| 3 | SM 02518 | | DETENT PLUNGER | 1 |
| 4 | SM 02519 | BO | SPEARHEAD BASE | 1 |
| 5 | SM 02520 | | SPIROL PIN 7/16″ x 1-3/4″ | 1 |
| 6 | SM 2542 | BO-U | LATCH RETRACTING CASE | 1 |
| 7 | SM 2522 | | SPRING PIN 3/8″ X 1-3/4″ | 2 |
| 8 | SM 1524 | | BOLT 3/8″ – 16UNC X 3/4″ | 1 |
| 9 | SM 2523 | | WASHER | 1 |
| 10 | SM 2553 | BO-U | COMPRESSION SPRING | 1 |
| 11 | SM 2546 | BO-U | UPPER LATCH BODY | 1 |
| 12 | SM 2526 | BO | LATCH | 2 |
| 13 | SM 2527 | BO | LINK | 2 |
| 14 | SM 2528 | | SPRING PIN 3/8″ x 1-1/4″ | 1 |
| 15 | SM 2543 | BO/NO | VALVE PISTON | 1 |
| 16 | SM 2547 | | SPRING PIN 1/4” x 1-5/8” | 1 |
| 17 | SM 2552 | | LANDING INDICATOR BUSHING | 1 |
| 18 | SM 2548 | BO-U | ADAPTER | 1 |
| 19 | SM 2549 | BO-U | SEAL | 2 |
| 20 | SM 2550 | BO-U | SEAL SEAT | 1 |
| 21 | SM 2531 | | LANDING SHOULDER | 1 |
| 22 | SM 2532 | | LOWER LATCH BODY | 1 |
| 23 | SM 2533 | | LOCKING NUT 7/8” UNC | 1 |
| 24 | SM 2534 | PO | SPINDLE | 1 |
| 25 | SM 2535 | BO | SHUT-OFF VALVE | 2 |
| 26 | SM 2536 | BO | VALVE ADJUSTING WASHER | 2 |
| 27 | SM 2537 | | THRUST BEARING | 2 |
| 28 | SM 2538 | BO | SPINDLE BUSHING | 1 |
| 29 | SM 2539 | BO | COMPRESSION SPRING | 1 |
| 30 | SM 2540 | | LOCKING NUT 5/8” UNC | 1 |
| 31 | SM 2541 | BO | INNER-TUBE CAP | 1 |
| 32 | SM 1549 | | GREASE FITTING | 1 |
| 33 | SM 2551 | | BALL 3/4” | 1 |
| 34 | SM 2544 | BO | CHECK VALVE BODY | 1 |
