MS21923-4C

ADAPTER
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About this product
The MS21923-4C is a military-standard aerospace adapter designed for use in hydraulic, fuel, and pneumatic systems. Built to rigorous Military Standard specifications, this adapter provides a reliable and leak-free connection between fluid lines, ensuring durability and compatibility with a wide range of aircraft applications. Supplied with trace documentation, it is suitable for certified maintenance and component replacements.
MS21923-4C Datasheet
Lead Time: Stock
UOM: EA
Certification: TRACE
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

MS21923-4C

  • Military-standard design: Manufactured in accordance with MS specifications for aerospace use.

  • High-strength alloy: Made from durable materials that withstand high-pressure environments.

  • Corrosion-resistant coating: Protects against moisture, hydraulic fluid, and fuel exposure.

  • Leak-free connection: Precision-machined threads and sealing surfaces ensure a tight fit.


  • Connects hydraulic system lines in the landing gear and flight control actuators.

  • Joins fuel lines in wing tanks, pumps, and distribution manifolds.

  • Used in pneumatic systems for air conditioning, pressurization, and de-icing.

  • Supports auxiliary power unit fuel and lubrication connections.


  • What type of systems use the MS21923-4C adapter?

It is commonly used in hydraulic, fuel, and pneumatic systems where a durable and leak-proof connection is required.

  • Is this adapter compatible with standard aerospace tubing?

Yes, it is designed to connect with standard-sized tubing and fittings per MS specifications.

  • Does it require special installation tools?

Only standard aerospace wrenches and torque tools are required. Follow OEM torque specifications


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