The U.S. aircraft register, updated daily
Parts

Plug Valve

No failure report names the plug valve. 4 FAA approvals let 2 companies make a replacement plug valve, Parker Hannifin CORP holding the most (3).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Boeing 737 (2), Boeing 707 (2), Embraer EMB-135 ERJ 135 and Legacy (1), Boeing 727 (1).

MakerPartReplacesFitsGrantedStatus
Hrd Aerosystems INCPlug Valve P13038HTL 13038Embraer S.A. EMB-135BJ(Legacy 600/650)2025-12-22current
Parker Hannifin CORPPlug Valve Assembly 2-166-2Boeing 2-166-2Boeing 737-2001996-05-02current
Parker Hannifin CORPPlug Valve Assembly 6-2762-9Boeing 6-2762-9Boeing 707-300, 737-100, 2001996-05-02current
Parker Hannifin CORPPlug Valve Assembly 7-262-3Boeing 7-262-3Boeing 707-3001996-05-02current

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.