The Series 1603 Tee Female NPSM Swivel x Female NPSM Swivel x Female NPSM Swivel adapters are durable carbon steel fittings designed for secure, leak-free connections in hydraulic and fluid power systems. These tee adapters feature a three-way design, with three female NPSM Swivel connections, providing flexibility for fluid routing between components. The female NPSM Swivel connections use straight threads with a swivel mechanism, ensuring a tight, leak-proof seal without requiring additional seals or sealants. It's important to distinguish NPSM (National Pipe Straight Mechanical) from NPTF (National Pipe Tapered Fuel). While NPTF utilizes tapered threads for a metal-to-metal seal, NPSM features straight threads, ideal for mechanical sealing without the need for a taper. Constructed from carbon steel, these adapters offer excellent strength, corrosion resistance, and long-lasting performance, making them perfect for high-pressure systems. The Series 1603 adapters are designed to deliver reliable, flexible, and efficient fluid routing in industrial applications, ensuring secure and dependable fluid transfer.