Derivatives & Versions
| HTK-1 / TH-43 | 1949 | Known as the Model K-240 by Kaman. |
| HOK-1 / OH-43 | 1953 | |
| HUK-1 / UH-43 | 1954 | |
| H-43 Huskie | 1956 | |
| → K-1125 | 1962 | Kaman Aircraft prototype civil transport helicopter using components of the Kaman K-600 (H-43) with a new fuselage for 12 passengers. |
Operators
| 1962-?? |  Royal Moroccan Air Force |
| 1963-?? |  Pakistan Air Force |
| 1965-1969 |  havanirooz |
| 1965-?? | niroye havaei |
| 1965-?? |  Tatmadaw Lei |