D series hook type commutator specification list
| Part No. | Structure | Bar No. | O.D. | I.D. | Height of bar | Height | Length of hook | O.D. of hook |
| D-456 | Hook type | 48 | 50 | 19 | 34 | 35 | 4.8 | 58.3 |
| D-458 | Hook type with copper | 20 | 18.1 | 7.08 | 14 | 17 | 3.5 | 24.8 |
| D-458A | Hook type | 20 | 18.1 | 7.08 | 14.2 | 17 | 3.5 | 24.8 |
| D-460 | Hook type | 16 | 36 | 12 | 21 | 23 | 5 | 44.8 |
| D-462 | Hook type | 24 | 23.2 | 12 | 15.4 | 18.3 | 2.8 | 28.2 |
| D-463 | Hook type | 12 | 24.5 | 8 | 19.3 | 20.7 | 7.16 | 32.5 |
| D-464 | Hook type | 24 | 28.2 | 12 | 17.8 | 20 | 3.2 | 33.2 |
| D-465 | Hook type | 10 | 15.8 | 8.06 | 12.5 | 13.5 | 3.8 | 21.1 |
| D-465A | Hook type | 10 | 15.8 | 8 | 12.5 | 13.5 | 3.8 | 21.1 |
| D-465B | Hook type | 10 | 15.8 | 8.06 | 12.5 | 13.5 | 3.8 | 19.8 |
| D-466 | Hook type with copper | 10 | 16.1 | 8 | 14.2 | 15 | 3.2 | 21 |
| D-467 | Hook type | 16 | 22 | 8.04 | 15.2 | 16.3 | 3.2 | 27.4 |
| D-467A | Hook type | 16 | 22 | 10.04 | 15.2 | 16.3 | 3.5 | 27.3 |
| D-467B | Hook type | 16 | 22 | 12 | 15.2 | 16.3 | 3.5 | 27.4 |
| D-467C | Hook type | 16 | 22 | 12 | 15.2 | 16.3 | 3.2 | 27.4 |
| D-468 | Hook type | 12 | 22.5 | 6 | 16.5 | 16.5 | 4 | 29.5 |
| D-470 | Hook type | 32 | 50 | 16 | 32.5 | 33 | 5.5 | 60.2 |
| D-472 | Hook type | 20 | 15.95 | 8 | 10 | 10.6 | 2.15 | 19.8 |
| D-473 | Hook type | 20 | 48 | 17 | 34 | 35 | 6.6 | 56 |
| D-474 | Hook type | 20 | 23.6 | 8 | 13.4 | 19.2 | 2.9 | 28.7 |
| D-475 | Hook type with copper | 25 | 59 | 24.1 | 6.5 | 19.7 | 5.2 | 58 |
| D-476 | Hook type | 12 | 18.9 | 8 | 15.3 | 15.8 | 4.4 | 26 |
| D-476A | Hook type | 12 | 18.9 | 10 | 15.3 | 15.8 | 4.4 | 26 |
| D-476B | Hook type | 12 | 18.9 | 8 | 15.3 | 15.8 | 3.2 | 23 |
| D-476C | Hook type | 12 | 18.9 | 8 | 15.3 | 15.8 | 4.4 | 26 |
| D-476D | Hook type | 12 | 18.9 | 8 | 15.3 | 15.8 | 3.2 | 23 |
| D-477 | Hook type | 16 | 18.8 | 8 | 10.3 | 11.2 | 2.5 | 22.6 |
| D-477A | Hook type | 16 | 18.8 | 10.04 | 10.3 | 11.2 | 2.5 | 22.6 |
| D-478 | Hook type | 12 | 19.05 | 8 | 15 | 15.5 | 3.7 | 23.8 |
| D-479 | Hook type | 12 | 23 | 10.04 | 17.3 | 18.3 | 4.8 | 30.2 |
| D-479A | Hook type | 12 | 23 | 10.04 | 17.3 | 18.3 | 4.5 | 30.2 |
| D-480 | Hook type with ring | 24 | 22 | 10 | 14.55 | 18 | 3 | 26 |
| D-481 | Hook type | 16 | 32 | 12 | 25 | 26 | 5 | 41.6 |
| D-481A | Hook type | 16 | 32 | 12 | 25 | 26 | 5 | 41.6 |
| D-481B | Hook type | 16 | 32 | 12 | 25 | 26 | 5 | 41.6 |
| D-481C | Hook type | 16 | 32 | 15 | 25 | 26 | 5 | 41.6 |
| D-481D | Hook type | 16 | 32 | 12 | 25 | 26 | 5 | 41.6 |
| D-482 | Hook type | 16 | 32 | 13 | 25 | 26 | 4 | 40.5 |
| D-483 | Hook type | 24 | 27 | 11.9 | 15.5 | 19 | 3.5 | 32.35 |
| D-484 | Hook type | 32 | 43.2 | 19 | 28 | 28.5 | 5 | 50.6 |
| D-485 | Hook type with ring | 24 | 28 | 12 | 17.5 | 21 | 3.6 | 33 |
| D-486 | Hook type with copper | 20 | 32.13 | 8.115 | 20.45 | 20.32 | 5.92 | 39.71 |
| D-487 | Hook type | 10 | 22.2 | 8 | 16.5 | 17 | 4.5 | 28.8 |
| D-488 | Hook type | 20 | 40.3 | 12 | 26 | 26 | 6.5 | 50 |
| D-488A | Hook type | 20 | 40.3 | 17 | 26 | 26 | 6.5 | 50 |
| D-488B | Hook type | 20 | 40.3 | 15 | 26 | 26 | 6.5 | 50 |
| D-488C | Hook type | 20 | 40.3 | 12 | 26 | 26 | 6.5 | 50 |
| D-488D | Hook type | 20 | 40.3 | 17 | 26 | 26 | 6.5 | 50 |
| D-489 | Hook type with copper | 20 | 35/20.7 | 8 | 16 | 19.7 | 4 | 40.8 |
| D-490 | Hook type | 12 | 19.05 | 7.14 | 15 | 15.5 | 3.7 | 23.8 |
| D-491 | Hook type | 12 | 22.63 | 9.5 | 15.2 | 19.3 | 2.4 | 27.2 |
| D-492 | Hook type with copper | 10 | 22.4 | 9.1 | 18.9 | 20.9 | 5.9 | 30.8 |
| D-494 | Hook type | 16 | 38.5 | 15 | 27 | 27.5 | 4.8 | 48.2 |
| D-494A | Hook type | 16 | 38.5 | 15 | 27 | 27.5 | 5.8 | 48.2 |
| D-494B | Hook type | 16 | 38.5 | 15 | 27 | 27.5 | 5.8 | 48.2 |
| D-495 | Hook type | 12 | 25.2 | 10.02 | 21.3 | 22 | 5.7 | 33.8 |
| D-495A | Hook type | 12 | 25.2 | 10.02 | 21.3 | 22 | 5 | 33 |
| D-496 | Hook type | 16 | 20.2 | 8 | 13.5 | 13.5 | 3.5 | 26.1 |
| D-497 | Hook type | 12 | 23 | 8 | 17.3 | 18.5 | 4.8 | 29.9 |
| D-497A | Hook type | 12 | 23 | 7.93 | 17.3 | 18.5 | 4.8 | 29.9 |
| D-498 | Hook type | 18 | 23 | 9 | 15.5 | 16.5 | 4 | 29.3 |
| D-499 | Hook type | 18 | 23 | 10 | 17.5 | 18.5 | 4.3 | 29.3 |
| D-499A | Hook type | 18 | 23 | 9 | 17.5 | 18.5 | 4.3 | 29.3 |
| D-500 | Hook type | 8 | 16.4 | 8 | 15 | 15 | 2.5 | 21.85 |
| D-501 | Hook type | 20 | 40.3 | 12 | 31 | 32 | 6.5 | 50 |
| D-501A | Hook type | 20 | 40.3 | 16 | 31 | 32 | 6.5 | 50 |
| D-501C | Hook type | 20 | 40.3 | 16 | 31 | 32 | 6.5 | 50 |
| D-502 | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 6 | 30.4 |
| D-503 | Hook type | 10 | 16.45 | 8 | 15.7 | 16.5 | 4.3 | 23 |
| D-503A | Hook type | 10 | 16.45 | 8.155 | 15.7 | 16.5 | 4.3 | 23 |
| D-504 | Hook type | 10 | 22.2 | 10 | 16.5 | 17 | 4.5 | 28.8 |
| D-506 | Hook type | 12 | 25.02 | 10 | 21 | 21.5 | 6 | 33 |
| D-507 | Hook type | 18 | 36.3 | 14 | 29 | 30 | 5.8 | 45 |
| D-508 | Hook type | 10 | 24.2 | 7.94 | 18 | 19 | 5.2 | 31 |
| D-509 | Flat hook type | 16 | 49 | 13.2 | 8 | 25 | 6.5 | 56.5 |
| D-510 | Hook type | 12 | 23 | 8.02 | 19 | 20 | 4.65 | 30 |
| D-510A | Hook type | 12 | 23 | 8.02 | 19 | 20 | 3.2 | 30 |
| D-511 | Hook type | 20 | 25.5 | 8 | 15.6 | 19.6 | 4 | 34.2 |
| D-511A | Hook type | 20 | 25.5 | 8 | 15.6 | 19.6 | 4 | 34.2 |
| D-511B | Hook type | 20 | 25.5 | 8 | 15.6 | 18.6 | 4 | 34.2 |
| D-512 | Hook type | 10 | 18.35 | 8.15 | 33.6 | 34.1 | 4.2 | 24.3 |
| D-512A | Hook type | 10 | 18.35 | 8 | 33.6 | 34.1 | 4.2 | 24.3 |
| D-514 | Hook type | 20 | 30.3 | 8 | 17.5 | 24.5 | 4.2 | 37.6 |
| D-515 | Hook type | 18 | 23 | 10 | 14.5 | 16 | 3 | 28.3 |
| D-516 | Hook type | 7 | 14.3 | 6 | 11 | 11.5 | 2.8 | 18 |
| D-517 | Hook type | 12 | 24.2 | 12 | 18 | 18.5 | 5 | 31.5 |
| D-517A | Hook type | 12 | 24.2 | 8 | 18 | 18.5 | 5 | 31.5 |
| D-518 | Hook type | 12 | 19 | 6 | 16 | 16.5 | 3.8 | 25 |
| D-518A | Hook type | 12 | 19 | 5 | 16 | 16.5 | 4 | 25 |
| D-519 | Hook type | 10 | 22.2 | 9.46 | 19.5 | 20.5 | 5.7 | 30.8 |
| D-522 | Hook type | 16 | 18.5 | 8.8 | 14 | 15.5 | 4 | 23.1 |
| D-524 | Hook type | 24 | 21.4 | 8.02 | 12.5 | 13.7 | 2.4 | 25 |
| D-524A | Hook type | 24 | 21.4 | 8.02 | 12.5 | 13.7 | 2.4 | 25 |
| D-525 | Hook type with ring | 32 | 38.5 | 12.5 | 28 | 28.5 | 4 | 45 |
| D-526 | Hook type | 20 | 28 | 8 | 16.3 | 18.5 | 4 | 34.2 |
| D-526A | Hook type | 20 | 28 | 8 | 16.3 | 18.5 | 4 | 34.16 |
| D-527 | Hook type | 12 | 23 | 8 | 17.3 | 20.5 | 4.7 | 29.7 |
| D-528 | Hook type with ring | 24 | 27 | 11.9 | 18.3 | 22 | 3.5 | 32.4 |
| D-528A | Hook type with ring | 24 | 27.05 | 11.9 | 18.3 | 22 | 3.5 | 32.2 |