#3 Brass Replace Sleeve

The #3 Brass Replace Sleeve is a precision compression ferrule engineered for hydraulic and pneumatic fluid power systems requiring reliable, leak-free connections. Designed for technicians, maintenance crews, and equipment operators who demand durability in high-pressure applications, this brass replacement sleeve serves as a critical component in AN (Army-Navy) standard fittings. Sold as part of a complete set of five, it provides the redundancy and inventory depth that professional shops and field teams require for uninterrupted operations.

Manufactured by AEROQUIP, a trusted leader in fluid power connectors, the #3 Brass Replace Sleeve is machined from high-grade brass for corrosion resistance and superior sealing performance in PTFE (polytetrafluoroethylene) fitting assemblies. The compression ferrule design creates a metal-to-metal or metal-to-PTFE seal that withstands repeated pressure cycles without galling or deformation, ensuring consistent performance across industrial, aerospace, and mobile equipment applications. The compact 2.35 x 1.1 x 3.8 inch profile and minimal 0.03 lb weight make it an easy-to-stock component for emergency repairs or planned maintenance kits.

This replacement sleeve is ideal for users maintaining or restoring existing #3 AN compression fitting assemblies where the ferrule has worn, scored, or been damaged during service. Installation requires no special tools—simply remove the damaged ferrule and slide the replacement onto the tubing before reconnecting to the fitting body. Compatibility with standard #3 AN ports and PTFE-lined tubing makes it a drop-in solution for hydraulic systems, air lines, and fuel distribution networks across automotive, industrial, and marine equipment platforms.