The U.S. aircraft register, updated daily
Parts

Compass Glass

No failure report names the compass glass. 1 FAA approvals let 1 company make a replacement compass glass, Aero Fabricators 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 compass glass and sell it as an approved part for the models named. These are the companies holding such approvals for a compass glass:

For these models most: Piper PA-60 Aerostar (1), Cessna UC-78 (1), Bellanca 14 (1), Aeronca 65 Chief and Super Chief (1), Aeronca 50 (1), Aeronca 15 (1).

MakerPartReplacesFitsGrantedStatus
Aero Fabricators INCCompass Glass A-058-000Modification PartAeronca C, 15, 501995-10-03current

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.