1. Home page
  2. buying guide
  3. straight fittings

straight fittings

straight fittings: A technical guide
Technician installing a high-pressure straight fitting into an aircraft hydraulic manifold during maintenance in a hangar.

4 Criteria to choose your straight fittings

Aerospace Grade Material Certification

Must ensure full traceability and chemical composition compliance with AS/EN standards to prevent galvanic corrosion in high-cycle airframes.

Pressure Rating Compliance

Fittings must maintain seal integrity under extreme hydraulic surges up to five thousand PSI to ensure flight control safety.

Weight-to-Strength Optimization

Engineers prioritize titanium or high-grade aluminum alloys to reduce structural mass without compromising the mechanical integrity of fuel systems.

Thread Interface Precision

Precise machining to MS or AN standards ensures leak-proof connections under high-frequency vibration environments typical in turbine engine compartments.

Available technologies and advantages

Flared Tube Fittings
These utilize a nut to compress a thirty-seven degree tube end against the body cone for reliable mechanical sealing. They offer high reliability but require precise tube flaring which may introduce fatigue stress.
Flareless Compression Fittings
Utilizing a bite-type sleeve to grip the tube, these eliminate flaring and provide vibration resistance. They enable faster assembly but require controlled torque to prevent tube wall deformation.
Beam Seal Fittings
These connectors feature metal-to-metal elastic seals for leak protection in high-temperature systems. They offer unmatched thermal stability but demand higher costs and precise alignment during installation.
Close-up of a titanium flared straight fitting showing precision threads and AS9100 markings for aerospace traceability.

6 expert tips

Prioritize AS9100 certified suppliers to guarantee material traceability and adherence to strict aerospace quality management system standards.
Conduct rigorous pressure burst testing on prototype batches to validate the theoretical safety margins against real-world operational stresses.
Standardize on titanium alloys for weight-critical drone components to maximize payload capacity and improve overall mission flight endurance.
Select fittings with integral O-ring seals for low-pressure fuel systems to simplify maintenance and reduce risk of leaks.
Evaluate the total lifecycle cost including installation labor and maintenance intervals rather than focusing solely on initial procurement price.
Verify the technical certification to ensure compliance with local building safety standards and long-term durability.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
About AeroExpo
AeroExpo is a marketplace that offers B2B players a complete experience, from product sourcing to purchase. AeroExpo is an entity of VirtualExpo Group.