The U.S. aircraft register, updated daily
Parts

Nut Piston

No failure report names the nut piston. 1 FAA approvals let 1 company make a replacement nut piston, Pacific Propeller INC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a nut piston and sell it as an approved part for the models named. These are the companies holding such approvals for a nut piston:

MakerPartReplacesFitsGrantedStatus
Pacific Propeller INCNut-Piston Gasket EAC 51390Modification PartHamilton Sundstrand 3D402005-06-27current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.