FAA-PMA
PMA PQ0136NM. Approved as a replacement for S283U008-19 on Boeing 747-400 series (Electronic Ballast) · Current, May 2012. · in stock here Leading Edge Group, LLC, 5 available, quote
The OEM number it replaces, and who sells those here
- S283U00819no listing here yet
A PMA part is approved for the specific eligibility listed on its FAA record; whether it may be installed on a particular aircraft, engine or component is the installer's determination. This page states the FAA record and the listings on PartsAndPlanes.