The U.S. aircraft register, updated daily
Parts

Retaining

No failure report names the retaining. 5 FAA approvals let 2 companies make a replacement retaining, Sonic Industries INC holding the most (4).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Boeing 767 (4), Bombardier DHC-8 Dash 8 and Q400 (1).

MakerPartReplacesFitsGrantedStatus
3 Points AviationRetaining, Seal 85220041-101-3PA85220041-101Bombardier DHC-8-100 Series, DHC-8-200 Series,...2021-02-05current
Sonic Industries INCRETAINING 310T2302-2310T2302-2Boeing 767-300 SERIES, 767-300F SERIES,...2004-01-13current
Sonic Industries INCRETAINING 311T3101-3311T3101-3Boeing 767-200 SERIES, 767-300 SERIES,...2004-01-13current
Sonic Industries INCRETAINING 311T3101-3311T3101-3Boeing 767-200 SERIES, 767-300 SERIES,...2003-03-16current
Sonic Industries INCRETAINING 310T2302-2310T2302-2Boeing 767-300 SERIES, 767-300F SERIES,...2003-03-16current

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.