The U.S. aircraft register, updated daily
Parts

Insert Nut

No failure report names the insert nut. 3 FAA approvals let 2 companies make a replacement insert nut, Midwest Aircraft Prod CO holding the most (2).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Boeing 737 (3), Saab-Fairchild 340 (2), Aerospatiale/Aeritalia ATR 42 (2).

MakerPartReplacesFitsGrantedStatus
Midwest Aircraft Prod COInsert Nut A3435-7Mansfield C3728-14Aerospatiale ATR 42 Series, 737, 340B2004-07-13current
Midwest Aircraft Products CompanyInsert Nut A3435-7BE Aerospace/ Mansfield P/N C3728-14Boeing 737) SAAB Aircraft AB...2004-07-13current
Midwest Aircraft Prod COInsert Nut A3435-7Mansfield C3728-14Aerospatiale ATR42 Series, 737, 340B1994-02-22current

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.