1/2in-3/8in Pipe Bushiin Black

The AEROQUIP 1/2in-3/8in Pipe Bushing in Black (FCM5139) is a precision-engineered adapter fitting designed to connect NPT (National Pipe Thread) ports of different sizes in hydraulic, pneumatic, and fluid transfer systems. This black anodized aluminum bushing reduces a 1/2-inch NPT male port to a 3/8-inch NPT female port, making it an essential component for fleet maintenance, equipment repair, and industrial assembly where port compatibility is critical.

Constructed from aluminum and finished with black anodization, this fitting provides corrosion resistance suitable for both indoor and outdoor applications. The NPT tapered thread design ensures a secure, leak-proof connection when properly assembled with thread sealant. The compact dimensions (2.3 x 1.1 x 4.1 inches) and lightweight construction (0.05 lbs) allow for easy integration into existing piping assemblies without adding bulk or weight. AEROQUIP's reputation for manufacturing quality hydraulic and pneumatic fittings ensures dimensional accuracy and reliable performance under standard operating pressures.

This bushing is ideal for technicians, maintenance crews, and equipment operators who need to adapt mismatched port sizes without replacing entire assemblies. Common applications include hydraulic system repairs, pneumatic tool connections, and fluid transfer line modifications on industrial machinery, vehicles, and portable equipment. The standardized NPT threading ensures compatibility with a wide range of hose ends, couplings, and manifold ports across multiple equipment manufacturers.

Tapered NPT threads remain the industry standard for fluid system fittings because they create interference fits that seal without O-rings, reducing part count and cost. This single-unit fitting is sold individually, allowing you to stock the exact quantity needed for your application—whether you're building a one-time repair kit or maintaining a fleet of equipment.