olemus
leping, millega määratakse hind, mida enam ei muudeta
= a contract which provides for a price that is not subject to any subsequent adjustment

ülevaateid
https://www.acquisition.gov/far/part-16

https://acqnotes.com/acqnote/careerfields/firm-fixed-price-ffp-contract

https://www.lawinsider.com/dictionary/firm-fixed-price-contract