#4 Tube Sleeve Steel

The #4 Tube Sleeve Steel from AEROQUIP is a precision-engineered fitting component designed for hydraulic and pneumatic systems requiring reliable tube connections. This set of 6 nickel-plated steel sleeves is engineered for professionals who demand dependable, leak-free performance in high-pressure applications. Whether you're assembling hydraulic lines, maintaining industrial equipment, or building custom fluid delivery systems, the #4 tube sleeve provides the secure grip and corrosion resistance needed for mission-critical work.

Manufactured from steel and finished with nickel plating, this tube sleeve accommodates 1/4 inch tubing and conforms to AN (Army-Navy) #4 standards, ensuring compatibility across military, aerospace, and industrial specifications. The nickel-plated finish provides superior corrosion resistance in harsh environments while maintaining the structural integrity required for high-pressure systems. The sleeve's compact design—measuring 2.35 x 1.05 x 3.75 inches and weighing only 0.04 lbs per unit—allows for easy integration into space-constrained applications without compromising sealing performance or connection reliability.

Mechanics, hydraulic technicians, and equipment manufacturers benefit most from this versatile fitting component, which serves as a replacement or upgrade solution for existing tube assemblies. The set of 6 sleeves ensures you have multiple units on hand for batch repairs, system rebuilds, or preventive maintenance programs. Installation is straightforward—simply slide the sleeve onto the tube before connecting to the fitting body—making it ideal for both field service and shop environments where quick turnaround and dependable results are essential.