The U.S. aircraft register, updated daily
Parts

Elastomeric Part

No failure report names the elastomeric part. 2 FAA approvals let 2 companies make a replacement elastomeric part, Lord Corporation, Mechanical Products Division holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Sikorsky S-76 (2).

MakerPartReplacesFitsGrantedStatus
Lord CorporationElastomeric Replacement Part Bearing LB4-1029-9-4-RP76102-08000-060Sikorsky Aircraft S76A-12012-02-20current
Lord Corporation, Mechanical Products DivisionElastomeric Replacement Part Bearing LB4-1029-9-4-RP76102-08000-060Sikorsky Aircraft S76A-12012-02-20current

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.