The U.S. aircraft register, updated daily
Parts

Copper Washer

No failure report names the copper washer. 3 FAA approvals let 1 company make a replacement copper washer, Hrd Aerosystems INC 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 copper washer and sell it as an approved part for the models named. These are the companies holding such approvals for a copper washer:

For these models most: Gulfstream GIV-X G450 (1), Boeing 777 (1), Boeing 767 (1), Boeing 737 (1), Aerospatiale ATR 72 (1).

MakerPartReplacesFitsGrantedStatus
Hrd Aerosystems INCCopper Washer H86658665The Boeing Company 737-900ER Series2026-03-09current
Hrd Aerosystems INCCopper Washer H86658665Gulfstream Aerospace... GIV-X2025-12-04current
Hrd Aerosystems INCCopper Washer H86658665Aerospatiale ATR72-101, ATR72-201) Gulfstream...2006-04-10current

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.