Part catalog
11290-2
VALVE, CHECK
BOEINGATA 21 · Air Conditioning
Catalog record
- Part number
- 11290-2
- Manufacturer
- BOEING
- ATA chapter
- ATA 21 · Air Conditioning
- Application
- B747-400
- Platform
- B747-400
- Source observations
- 37
- Last observed
- 2026-05-21
Catalog data is source-backed reference information. It does not establish availability, repair capability, certification, traceability, ownership, or airworthiness.