- Crewed spacecraft (445)
- Uncrewed spacecraft (328)
- Components (objects) (317)
- Equipment (173)
- Instruments (112)
- Payloads (112)
- Testing equipment (78)
- Protective and life-saving equipment (42)
- Navigational instruments (39)
- Electrical systems (19)
- Communication systems (mechanical and electrical systems) (16)
- Propulsion systems (8)
- Commemoratives (4)