MS20819-5J Sleeve Flared Tube Fitting is a military standard aircraft fitting component designed to support secure and leak-resistant flared tube connections in aerospace fluid systems. The sleeve is installed between the tube flare and the coupling nut, distributing clamping forces evenly while protecting the flared tube end from deformation during installation and service.

Manufactured in accordance with the MS20819 specification, this sleeve is precision-machined to ensure proper alignment and reliable sealing when used with compatible AN and MS flared tube fittings. It is commonly utilized in aircraft hydraulic, fuel, oil, pneumatic, and lubrication systems, where dependable fluid transfer and resistance to vibration are essential.

The sleeve helps maintain the integrity of the flared connection by providing consistent support under pressure and thermal cycling. Its robust construction contributes to long service life and reliable system performance in demanding aerospace environments. Correct installation with the appropriate tube size and mating components is critical to achieving the required sealing performance.

Routine maintenance should include inspection for signs of corrosion, wear, deformation, or damage during system servicing. Replacing worn or damaged sleeves helps preserve the integrity of the tubing assembly and minimizes the risk of fluid leakage.

Key Features

- Part Number: MS20819-5J
- Manufacturer: Military Standard (MS) / Approved Aviation Hardware Manufacturer
- Component: Sleeve for Flared Tube Fitting
- Designed for aircraft flared tube connections
- Supports even load distribution and protects the tube flare during tightening
- Suitable for hydraulic, fuel, oil, pneumatic, and lubrication systems
- Precision-machined for reliable sealing and secure tube alignment
- Manufactured to MS20819 military specification