This requires a little force to get on but stays on securely. The part number of the lid is 002.819.67
https://cad.onshape.com/documents/b76746dd907d9c6c443fb872/w/304861b5376a938ac7c7502d/e/3242655fb327fbdd48a7dce0?renderMode=0&uiState=6519b65216759a31a9f8e26d
The author marked this model as their own original creation.