Who Parker Hannifin buys from and sells to
Makes motion-control parts: hydraulics, filtration and seals for industry, and aircraft systems.
Buys from 1
- Steel, aluminium and alloy producersmetals for hydraulics and aircraft systems
Sells to 5
- Industrial distributorshydraulic, filtration and sealing products
- CaterpillarCAThydraulics and filtration for machines
- BoeingBAflight control and fuel systems
- AirbusEADSYthe same, on A320 and A350
- Airlines and MRO shopsaircraft spare parts
Where the chain could break
- Aerospace Systems was 33% of FY2026 sales, tied to Boeing and Airbus build rates
- Industrial sales track global factory output
Competes with
- EatonETNhydraulics and aircraft fluid systems
- HoneywellHONaircraft systems
- WoodwardWWDaircraft fuel and actuation
Mapped by hand from filings and company reporting, as of October 2026. It shows the relationships that matter most, not every contract: most are never disclosed, and agreements change.