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-248 | Hook type | 12 | 18.2 | 8.034 | 13.5 | 13.5 | 4.3 | 23.4 |
| D-249 | Hook type | 20 | 23 | 8 | 13.3 | 18.3 | 3.2 | 28 |
| D-250 | Hook type | 10 | 22.35 | 9.093 | 15.1 | 15.9 | 3 | 29.3 |
| D-252 | Hook type with ring | 32 | 32 | 12 | 18.3 | 21 | 4.2 | 39 |
| D-256 | Hook type | 20 | 30.3 | 8.1 | 17.5 | 17.5 | 4.2 | 37.6 |
| D-257 | Hook type | 24 | 28 | 12 | 17.9 | 20 | 2.9 | 33 |
| D-261 | Hook type | 24 | 23.2 | 8 | 14.7 | 18.9 | 2.8 | 27.5 |
| D-263 | Hook type | 10 | 22.3 | 9.4 | 18.8 | 21 | 5.8 | 29 |
| D-264 | Hook type | 20 | 30.3 | 18 | 17.5 | 17.5 | 4.2 | 37.6 |
| D-265 | Hook type | 12 | 18.9 | 8 | 11.3 | 12.5 | 3.1 | 23.6 |
| D-265A | Hook type | 12 | 18.9 | 10 | 11.3 | 12.5 | 3.1 | 23.6 |
| D-266 | Hook type | 32 | 32.3 | 15.62 | 23.5 | 24 | 4.95 | 40.7 |
| D-267 | Hook type | 10 | 16 | 8.15 | 15 | 15 | 4 | 21.5 |
| D-267A | Hook type | 10 | 16 | 8.15 | 15 | 15 | 4 | 21.5 |
| D-268 | Hook type | 16 | 32 | 12 | 21 | 22 | 5 | 41.9 |
| D-268A | Hook type | 16 | 32 | 12 | 21 | 22 | 5.8 | 41.9 |
| D-268B | Hook type | 16 | 32 | 12.55 | 21 | 22 | 5.8 | 41.9 |
| D-268C | Hook type | 16 | 32 | 12 | 21 | 22 | 5 | 41.7 |
| D-268D | Hook type | 16 | 32 | 12 | 21 | 22 | 5.8 | 41.9 |
| D-269 | Hook type | 40 | 48 | 19 | 34 | 35 | 5.6 | 56 |
| D-269A | Hook type | 40 | 48 | 19 | 34 | 35 | 5.6 | 56 |
| D-269B | Hook type | 40 | 48 | 19 | 34 | 35 | 5.6 | 56 |
| D-269C | Hook type | 40 | 48 | 19 | 34 | 35 | 5.6 | 56 |
| D-269D | Hook type | 40 | 48 | 19 | 26 | 27 | 5.6 | 56 |
| D-271 | Hook type | 16 | 31.8 | 9.5 | 19 | 20 | 4.2 | 38.6 |
| D-273 | Hook type with ring | 24 | 25.3 | 9 | 14.5 | 19 | 3.2 | 30 |
| D-277 | Hook type | 24 | 22.2 | 8.02 | 12.4 | 16 | 2.5 | 26.4 |
| D-278 | Hook type with ring | 24 | 23.2 | 10 | 14.7 | 18.9 | 2.9 | 27.5 |
| D-279 | Hook type | 16 | 32.1 | 10.068 | 22.82 | 24.4 | 5.6 | 40.23 |
| D-280 | Hook type | 16 | 32.1 | 15.942 | 22.82 | 24.4 | 5.6 | 40.23 |
| D-281 | Hook type with ring | 24 | 26 | 13.3 | 17 | 22.5 | 3.29 | 31.88 |
| D-282 | Hook type | 12 | 19.2 | 8.034 | 14.3 | 14.3 | 4.5 | 25 |
| D-282A | Hook type | 12 | 19.2 | 8.034 | 14.3 | 14.3 | 4.5 | 25 |
| D-282B | Hook type | 12 | 19.2 | 8.034 | 14.3 | 14.3 | 4.5 | 25 |
| D-282C | Hook type | 12 | 19.2 | 8.034 | 14.3 | 14.3 | 4 | 25 |
| D-282D | Hook type | 12 | 19.2 | 8.034 | 14.3 | 14.3 | 3.5 | 25 |
| D-283 | Hook type | 12 | 19.2 | 10.031 | 14.3 | 14.3 | 4.5 | 24.9 |
| D-285 | Hook type | 24 | 19 | 10 | 11.1 | 12.5 | 2.4 | 22 |
| D-287 | Hook type with ring | 22 | 28.57 | 10 | 17.97 | 20 | 4.16 | 33 |
| D-287A | Hook type with ring | 22 | 28.57 | 10 | 17.97 | 20 | 4.16 | 33 |
| D-288 | Hook type | 16 | 22 | 8 | 14.8 | 16.3 | 3.5 | 27.3 |
| D-288A | Hook type | 16 | 22 | 10 | 14.8 | 16.3 | 3.5 | 27.3 |
| D-290 | Hook type with ring | 32 | 35 | 15.8 | 21.2 | 24.5 | 3 | 40.2 |
| D-292 | Hook type | 22 | 23.55 | 7.97 | 16.6 | 20.3 | 4.05 | 28.6 |
| D-293 | Hook type | 12 | 23 | 9.9 | 17.5 | 18.5 | 5.2 | 29 |
| D-293A | Hook type | 12 | 23 | 9.9 | 17.5 | 18.5 | 5.2 | 29 |
| D-295 | Hook type with ring | 12 | 19.2/19.45 | 10 | 14.3 | 14.3 | 4.4 | 24.9 |
| D-296 | Hook type | 24 | 22 | 8 | 12.25 | 13.25 | 2.95 | 26.5 |
| D-296A | Hook type | 24 | 22 | 9.01 | 12.25 | 13.25 | 2.95 | 26.5 |
| D-298 | Hook type | 10 | 16 | 8 | 12.9 | 12.5 | 3 | 22 |
| D-298A | Hook type | 10 | 16 | 8 | 12.9 | 12.5 | 3 | 22 |
| D-298B | Hook type | 10 | 16 | 8.03 | 12.9 | 12.5 | 3 | 22 |
| D-298C | Hook type | 10 | 16 | 8 | 12.9 | 12.5 | 3 | 22 |
| D-299 | Hook type | 24 | 22 | 10 | 16 | 18.5 | 3 | 28 |
| D-300 | Hook type | 12 | 15.3 | 5 | 16.5 | 17 | 3.2 | 20.5 |
| D-302 | Hook type with ring | 16 | 35 | 15.8 | 21 | 27 | 5 | 40.2 |
| D-303 | Hook type with copper | 8 | 15.87 | 6.1 | 12.1 | 21.2 | 2.5 | 20.6 |
| D-303A | Hook type with copper | 8 | 15.87 | 6.1 | 12.1 | 21.2 | 2.5 | 20.6 |
| D-304 | Hook type | 40 | 48 | 20 | 34 | 35 | 5.6 | 56 |
| D-305 | Hook type | 7 | 13.8 | 4 | 9 | 9.5 | 2.4 | 17.5 |
| D-306 | Hook type with copper | 12 | 19.2 | 8 | 14.3 | 14.3 | 4.4 | 24.9 |
| D-307 | Hook type with copper | 5 | 11.5 | 4 | 12 | 21 | 3.6 | 17.6 |
| D-308 | Hook type | 10 | 16 | 5 | 15 | 15 | 3.5 | 20.2 |
| D-308A | Hook type | 10 | 16 | 8 | 15 | 15 | 3.5 | 20.2 |
| D-308B | Hook type | 10 | 16 | 5 | 15 | 15 | 3.5 | 20.2 |
| D-309 | Hook type | 32 | 38.5 | 12 | 28 | 28.5 | 4 | 45 |
| D-311A | Hook type | 24 | 23.2 | 12 | 15.4 | 18.3 | 2.8 | 28.2 |
| D-311B | Hook type | 24 | 23.2 | 12.01 | 15.4 | 18.3 | 2.8 | 28.2 |
| D-311C | Hook type | 24 | 23.2 | 12 | 15.4 | 18.3 | 2.8 | 28.2 |
| D-311D | Hook type | 24 | 23.22 | 12 | 15.4 | 18.3 | 2.8 | 28.2 |
| D-312 | Hook type with ring | 24 | 22.63 | 9.5 | 15 | 19.3 | 2.4 | 27.2 |
| D-314 | Hook type | 20 | 30.1 | 8 | 18 | 17 | 4.8 | 36.5 |
| D-316 | Hook type | 12 | 23 | 10.1 | 17.3 | 18.3 | 4.7 | 30.2 |
| D-317 | Hook type | 12 | 23 | 8.1 | 17.3 | 18.3 | 4.7 | 30.2 |
| D-318 | Hook type | 16 | 32.3 | 15.62 | 23.2 | 24 | 6.2 | 42.3 |
| D-324 | Hook type | 18 | 16.5 | 6.33 | 12.7 | 15.1 | 2.5 | 21.4 |
| D-325 | Hook type | 24 | 18.9 | 6.33 | 12.7 | 14.6 | 3 | 23 |
| D-326 | Hook type with copper | 7 | 11.5 | 4 | 12 | 22 | 3.6 | 17.6 |
| D-327 | Hook type with ring | 24 | 28.4 | 10.5 | 18 | 21 | 2.8 | 33 |
| D-328 | Hook type | 22 | 28.6 | 8.08 | 20.3 | 22.6 | 3.4 | 35 |
| D-328A | Hook type | 22 | 28.6 | 12 | 20.3 | 22.6 | 3.4 | 35 |
| D-328B | Hook type | 22 | 28.6 | 10 | 20.3 | 22.6 | 3.4 | 34.8 |
| D-329 | Hook type | 16 | 32 | 8 | 22.35 | 21.3 | 4.25 | 41 |
| D-329A | Hook type | 16 | 32 | 8 | 22.35 | 21.3 | 4.25 | 41 |
| D-329B | Hook type | 16 | 32 | 8 | 22.35 | 21.3 | 5.75 | 41 |
| D-330 | Hook type | 16 | 32 | 8 | 19.35 | 18.3 | 4.25 | 41 |
| D-331 | Hook type | 32 | 43.2 | 17 | 28 | 28.5 | 5 | 50.3 |
| D-331A | Hook type | 32 | 43.2 | 17 | 28 | 28.5 | 4.8 | 51.5 |
| D-332 | Hook type | 32 | 50 | 17 | 30.5 | 33 | 5.5 | 60.2 |
| D-332A | Hook type | 32 | 50 | 16.995 | 32.5 | 33 | 5.5 | 60.2 |
| D-333 | Hook type with ring | 24 | 26 | 13.3 | 17 | 20.25 | 3.2 | 31.9 |
| D-335 | Hook type with ring | 28 | 37.5 | 17.4 | 25.4 | 28.25 | 4.5 | 44.07 |
| D-336 | Hook type | 18 | 23 | 8 | 14 | 15.5 | 3.5 | 27.6 |
| D-336A | Hook type | 18 | 23 | 8 | 14 | 15.5 | 3.5 | 27.3 |
| D-337 | Hook type | 40 | 63 | 20 | 35.8 | 38 | 6 | 72 |
| D-337A | Hook type | 40 | 63 | 19.995 | 35.8 | 38 | 6 | 72 |
| D-339 | Hook type with copper | 7 | 14.95 | 6 | 15.3 | 19 | 4.8 | 23.3 |
| D-340 | Hook type with ring | 32 | 43.2 | 16.995 | 28 | 28.5 | 5 | 50.3 |
| D-341 | Hook type | 28 | 28.8 | 12 | 21.6 | 24.6 | 3.5 | 37.85 |
| D-343 | Hook type | 48 | 55 | 19 | 36 | 37 | 4.8 | 67.5 |
| D-345 | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345A | Hook type | 12 | 23 | 10.01 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345B | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345C | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 3 | 29.2 |
| D-345D | Hook type | 12 | 23 | 10.01 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345E | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345G | Hook type | 12 | 23 | 10 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345H | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345I | Hook type | 12 | 23 | 10.01 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345J | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345K | Hook type | 12 | 23 | 10.01 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345L | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-345R | Hook type | 12 | 23 | 8 | 15.3 | 15.5 | 3 | 29.2 |
| D-345S | Hook type | 12 | 23 | 10 | 15.3 | 15.5 | 4.5 | 29.2 |
| D-346 | Hook type with ring | 32 | 43.2 | 16 | 28 | 28.5 | 5 | 50.3 |
| D-347 | Hook type | 24 | 22.65 | 9.5 | 15 | 19.25 | 2.4 | 27.2 |
| D-348 | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348A | Hook type | 16 | 28 | 10 | 18 | 18 | 5 | 35.5 |
| D-348B | Hook type | 16 | 28 | 12 | 18 | 18 | 5 | 35.5 |
| D-348C | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348D | Hook type | 16 | 28 | 8 | 18 | 18 | 4 | 35.5 |
| D-348E | Hook type | 16 | 28 | 10 | 18 | 18 | 5 | 37.1 |
| D-348F | Hook type | 16 | 28 | 10.95 | 18 | 18 | 5 | 35.5 |
| D-348G | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348H | Hook type | 16 | 28 | 10 | 18 | 18 | 5 | 35.5 |
| D-348K | Hook type | 16 | 28 | 12 | 18 | 18 | 5 | 35.5 |
| D-348J | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348N | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348M | Hook type | 16 | 28 | 8 | 18 | 18 | 5 | 35.5 |
| D-348L | Hook type | 16 | 28 | 10 | 18 | 18 | 5 | 35.5 |