The U.S. aircraft register, updated daily
Parts

Spider Ring

No failure report names the spider ring. 4 FAA approvals let 1 company make a replacement spider ring, Rsw Products INC holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Rsw Products INCSpider Ring, Phenolic C. P. 22018Hamilton Standard Propeller, S8493Hamilton Standard Division 12D401997-02-05current
Rsw Products INCSpider Ring, Phenolic C. P. 22017Hamilton Standard Propeller, S8482Hamilton Standard Division 2D301997-02-05current
Rsw Products INCSpider Ring, Phenolic C.P. 22017Hamilton Standard Propeller, S8482Hamilton Standard Division 2D301994-06-20current
Rsw Products INCSpider Ring, Phenolic C.P. 22018Hamilton Standard Propeller, S8493Hamilton Standard Division 12D401994-06-20current

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.