NAS1523 Thread Seal Washer

What is NAS1523 Thread Seal Washer?

NAS1523 thread seal washers are sealing components commonly used in aerospace hydraulic, fuel, and pneumatic systems to prevent fluid leakage under pressure. These sealing washers are designed to provide reliable sealing performance in threaded fitting assemblies where vibration resistance, pressure retention, and environmental durability are required.

NAS1523 style sealing washers are widely used in aerospace and defense applications due to their ability to maintain sealing integrity in critical systems. Typical applications include hydraulic lines, fuel systems, lubrication systems, and fluid transfer connections used in aircraft and aerospace equipment.

A typical NAS1523 sealing washer consists of a metallic retainer combined with an elastomer sealing element. Material selection depends on operating temperature, fluid compatibility, pressure conditions, and environmental requirements.

Common elastomer materials include:

• NBR for hydraulic oils and general industrial fluids

• FKM for high-temperature and fuel-resistant applications

• FVMQ for low-temperature aerospace fuel system applications

  
  

In aerospace manufacturing environments, material traceability and controlled production processes are important factors for sealing components used in critical applications. Products may be manufactured according to customer drawings, material specifications, and application-specific traceability requirements.

ROMAN SEAL manufactures elastomer sealing components for aerospace and industrial applications under AS9100 certified quality management systems and NADCAP-accredited special process controls.

FAQ

What is NAS1523 used for?

NAS1523 sealing washers are used in threaded fluid connection systems to prevent leakage in aerospace hydraulic, fuel, lubrication, and pneumatic applications.

What materials are available?

Common materials include NBR, FKM, and FVMQ depending on fluid compatibility and operating temperature requirements.

Can custom dimensions be manufactured?

Yes. Custom dimensions and customer-specific configurations can be manufactured according to application requirements.

Are traceability requirements supported?

Material traceability and controlled manufacturing documentation can be managed according to customer and aerospace quality requirements.