Brand： Junxun

Overview：
The Junxun MS21913-5 Plug is a precision aircraft maintenance component designed to seal and protect flareless tube fittings in aviation hydraulic, pneumatic, fuel, and fluid system applications. Engineered for reliable sealing performance and secure installation, this plug helps prevent contamination, moisture ingress, and foreign object debris (FOD) from entering exposed tube connections during aircraft maintenance, inspection, storage, and transportation procedures. The MS21913-5 supports aircraft system protection by maintaining cleanliness and integrity of critical fluid connections in demanding aerospace environments.

Key Points：

Specialized flareless tube plug for aircraft fluid system sealing and protection applications
Provides secure closure for exposed flareless tube fittings during maintenance operations
Helps prevent contamination, moisture, and FOD intrusion into critical aircraft systems
Precision-engineered design ensures proper fit and dependable sealing performance
Durable construction supports repeated use in professional aerospace maintenance environments
Designed for airlines, MRO facilities, and aircraft maintenance professionals

Application：
Ideal for airlines, aircraft MRO facilities, and maintenance technicians performing aircraft inspection, repair, overhaul, and preservation procedures. The MS21913-5 Plug – Flareless Tube is used to protect open flareless tube fittings in aircraft hydraulic, pneumatic, fuel, and fluid systems, helping maintain system cleanliness and prevent contamination during maintenance and storage operations.