The U.S. aircraft register, updated daily
Parts

Specification Plate

No failure report names the specification plate. 1 FAA approvals let 1 company make a replacement specification plate, Marvel Schebler Aircraft Carburetors LLC 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 specification plate and sell it as an approved part for the models named. These are the companies holding such approvals for a specification plate:

MakerPartReplacesFitsGrantedStatus
Marvel Schebler Aircraft Carburetors LLCSpecification Plate S384480Stromberg 384480Continental... A-50-1, A-50-2, A-50-32025-07-09current

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.