The U.S. aircraft register, updated daily
Parts

Contactor Pst

No failure report names the contactor pst. 3 FAA approvals let 1 company make a replacement contactor pst, Hartman Electrical Mfg holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas MD-11 (2), Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Hartman Electrical MfgContactor 3 PST NO 350 Amp 120/208V 400 Hz B-429CMcDonnell Douglas 5D0270-1McDonnell Douglas MD-11, -11F1993-10-20current
Hartman Electrical MfgContactor 3 PST Magn Latch 500 Amp 115/200V 400 Hz B-484Boeing 60B00010-30Boeing 747-4001993-10-20current
Hartman Electrical MfgContactor 3 PST Magn Latch 350 Amp 115/200V 400 Hz B-440AHartman Elect. B-440AMcDonnell Douglas MD-11, -11F1993-10-20current

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.