The U.S. aircraft register, updated daily
Parts

Spring Ring

No failure report names the spring ring. 1 FAA approvals let 1 company make a replacement spring ring, Aviation Component Solutions holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

For these models most: Boeing 787 Dreamliner (1).

MakerPartReplacesFitsGrantedStatus
Aviation Component SolutionsSpring Ring Seal P01477763614-16The Boeing Company 787-8, 787-9, 787-102026-01-06current

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.