The U.S. aircraft register, updated daily
Parts

Half Size

No failure report names the half size. 5 FAA approvals let 3 companies make a replacement half size, Lermer Corporation 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 half size and sell it as an approved part for the models named. These are the companies holding such approvals for a half size:

For these models most: Boeing 777 (3), Boeing 757 (2), Mcdonnell Douglas DC-9 (1), Mcdonnell Douglas DC-10 (1), Mcdonnell Douglas Aircraft Co MD-88 (1), Boeing 767 (1), Boeing 737 (1), Boeing 727 (1), Airbus A300 (1).

MakerPartReplacesFitsGrantedStatus
Driessen Aircraft Interior Systems INCHalf Size Bev Cart E500103E500103Boeing 757-2002001-10-11current
Driessen Aircraft Interior Systems INCHalf Size Meal Cart E500103-01E500103-01Boeing 757-2002001-10-11current
Iacobucci USA INC12" Half Size Meal Cart MK208NoneAirbus A300-B4-600 Series, A300-B4-600R...1999-07-27current
Lermer CorporationHalf Size Meal Trolley TL025001Boeing 777-200 Series1999-02-11current
Lermer CorporationHalf Size Waste Trolley TH014001Boeing 777-200 Series1999-02-11current

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.