The U.S. aircraft register, updated daily
Parts

Torque Meter

No failure report names the torque meter. 5 FAA approvals let 3 companies make a replacement torque meter, Avmar INC holding the most (2).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Lockheed 382 (2), Lockheed Martin Corp 382 (1).

MakerPartReplacesFitsGrantedStatus
Ads/TranscoilTorque Meter Indicator 9A20909A2100or201-004-001 or *698611-1Lockheed *382, *382B, *382E2006-09-28current
Ads/TranscoilTorque Meter Indicator 9A20909A2100or201-004-001Lockheed... 382G S/Ns 5225 and subsequent2006-09-28current
Avmar INCTorque Meter Indicator 86-600Modification PartLockheed L188A, C2001-01-02current
Avmar INCTorque Meter Indicator 86-600-1Modification PartKelowna Flightcraft R & D Convair 330/440 with Allison,...2001-01-02current
Transicoil INCTorque Meter Indicator 9A20909A2100 or 201-004-001 or 698611-1Lockheed 382, 382B, 382E1992-10-29current

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.