The U.S. aircraft register, updated daily
Parts

Flat Washers

No failure report names the flat washers. 4 FAA approvals let 1 company make a replacement flat washers, Rdf Corporation 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 flat washers and sell it as an approved part for the models named. These are the companies holding such approvals for a flat washers:

MakerPartReplacesFitsGrantedStatus
Rdf CorporationFLAT WASHERS 55165Pratt & Whitney P/N 3025561Pratt & Whitney PW119B, 119C, 1202001-06-19current
Rdf CorporationFlat Washers 55165Pratt & Whitney 3025561Pratt & Whitney PW119B, 119C, 1202000-12-05current
Rdf CorporationFlat Washers 55165 Rev. -, Dated 08/06/97Pratt & Whitney P/N 3025561Pratt & Whitney PW119B, 119C, 1201999-07-29current
Rdf CorporationFlat Washers 55165 Rev.-Dated 8/6/97Pratt & Whitney P/N 3025561 Rev. DatedPratt & Whitney PW119B, 119C, 1201998-03-05current

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.