The U.S. aircraft register, updated daily
Parts

Hydraulic Brake

No failure report names the hydraulic brake. 5 FAA approvals let 4 companies make a replacement hydraulic brake, Moog 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 hydraulic brake and sell it as an approved part for the models named. These are the companies holding such approvals for a hydraulic brake:

For these models most: Waco UPF-7 (1), Lockheed 1329 (1), Boeing 767 (1), Boeing 757 (1).

MakerPartReplacesFitsGrantedStatus
Rare Aircraft LTDHydraulic Brake Master Cylinder 690-2Modification PartWaco Aircraft Company YPF, YPF-6, YPF-72018-06-03current
Moog INCHydraulic Brake Stab. Trim 160500-101S251N276-2Boeing 767-2C Series2018-01-23current
Moog INCHydraulic Brake Stabilizer 160500-101S251T276-2Boeing 757-200, -200PF -200CB & -300 series...2010-08-03current
Kulite Semiconductor Prod INCHydraulic Brake Pressure Transducer APTE-150-5000GIBA103G-93Boeing DC-10 SERIES2008-05-27current
L3 Communications Integrated SystemsHydraulic Brake System --Lockheed 13291975-11-17current

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.