The U.S. aircraft register, updated daily
Parts

Structural Web

No failure report names the structural web. 2 FAA approvals let 2 companies make a replacement structural web, B/E Aerospace INC 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 structural web and sell it as an approved part for the models named. These are the companies holding such approvals for a structural web:

MakerPartReplacesFitsGrantedStatus
Ases LLC DBA Field AerospaceStructural Web 764-10135-4Modification PartThe Boeing Company DC-10-30F (KC-10A)2017-01-18current
B/E Aerospace INCSTRUCTURAL WEB 764-10135-4764-10135-4The Boeing Company DC-10-30F (KC-10A)2014-11-13current

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.