Part Number: 1405

NPTF Pipe Female x NPSM Pipe Swivel Female Adapter

Product Overview

The Delphi Fittings Part 1405 is a straight adapter expertly designed to connect a male NPTF (National Pipe Taper Fuel / Dryseal) threaded fitting or pipe to a component or hose assembly that features a female NPSM (National Pipe Straight Mechanical) swivel end. This adapter incorporates a female NPTF pipe thread on one end, which is engineered to form a metal-to-metal Dryseal with a mating male NPTF fitting, and a female NPSM pipe swivel on the other end. The crucial NPSM swivel nut allows for easy alignment and tightening of the connection without imparting any twist or torsional stress onto the mating hose or component, thereby preventing potential damage and ensuring a proper installation. Manufactured from high-quality carbon steel and typically zinc-plated for enhanced corrosion resistance, the Part 1405 adapter provides a durable and reliable transition between NPTF and NPSM connection standards.

Key Features & Specifications

Material	High-Grade Carbon Steel
End 1 Configuration	Female NPTF Pipe (Dryseal) (threads conforming to ANSI B1.20.3 / SAE J476)
End 2 Configuration	Female NPSM Pipe Swivel (National Pipe Straight Mechanical) (threads conforming to ANSI/ASME B1.20.1)
Body Style	Straight Adapter with hexagonal (hex) features for secure wrench engagement.
Sealing Mechanism	NPTF Female End: Forms a Dryseal (metal-to-metal) connection when mated with a male NPTF fitting. If connecting to a standard NPT male fitting, the use of a thread sealant on the male NPT threads is required for optimal sealing. NPSM Female Swivel End: NPSM threads are straight and do not provide a seal on the threads themselves. Sealing is typically achieved when this female swivel connects to a male fitting with a tapered seat (e.g., a male NPT or NPTF fitting, where the seal forms on the male tapered threads) or a specific male NPSM fitting designed with a sealing face or requiring a gasket. The swivel nut facilitates tightening without rotating the adapter body.
Corrosion Protection	Standard Zinc Plating for enhanced durability and resistance to corrosion.
Primary Function	To provide a straight, reliable connection from a female NPTF port (which accepts a male NPTF or NPT fitting) to a female NPSM swivel end, thereby allowing for easy installation and correct orientation of the connected line or component.
Working Pressure	Suitable for a range of hydraulic and pneumatic systems. Specific pressure ratings are dependent on the size of the adapter, the application, and the integrity of the NPTF seal.

Commonly Available Sizes (Part #1405 Series)

Delphi Fittings offers the Part 1405 NPTF Female x NPSM Female Pipe Swivel adapter in various common nominal pipe sizes. Both ends typically share the same nominal pipe size designation.

Examples include (Female NPTF x Female NPSM Swivel):

1405-02-02: 1/8" NPTF Female x 1/8" NPSM Female Swivel
1405-04-04: 1/4" NPTF Female x 1/4" NPSM Female Swivel
1405-06-06: 3/8" NPTF Female x 3/8" NPSM Female Swivel
1405-08-08: 1/2" NPTF Female x 1/2" NPSM Female Swivel
1405-12-12: 3/4" NPTF Female x 3/4" NPSM Female Swivel
1405-16-16: 1" NPTF Female x 1" NPSM Female Swivel

Note: For unlisted size combinations, specific material requirements (e.g., stainless steel options), or other custom needs, please contact our sales team.

Applications

The Part 1405 NPTF Female x NPSM Female Pipe Swivel adapter is widely used in:

Connecting components with female NPTF ports (such as certain types of valves, manifolds, or equipment outlets) to hydraulic hoses or assemblies that are terminated with female NPSM swivel ends.
Installations where the ability to easily orient the connected hose or component, without imparting twist, is crucial for preventing stress, kinking, or potential damage to the assembly, especially when connecting to fixed female NPTF ports.
Various hydraulic, pneumatic, and general industrial piping applications requiring a reliable transition from a female NPTF port to a female NPSM swivel connection.
Facilitating simpler and more efficient plumbing in systems where precise alignment of components is necessary during assembly and maintenance.

Installation & Usage Guidelines

Ensure all NPTF female threads, NPSM female swivel threads, and any mating male sealing surfaces are meticulously clean, undamaged, and free from any contaminants or debris before assembly.
Thread a mating male NPTF (or NPT with sealant) fitting into the female NPTF end of the Part 1405 adapter. NPTF threads are designed for a Dryseal connection with a male NPTF fitting; however, for optimal sealing, especially if the mating male fitting is standard NPT, the application of a compatible thread sealant (such as PTFE tape or pipe dope) to the male threads is highly recommended. Tighten to the appropriate specification to achieve a secure, leak-proof seal.
Connect the female NPSM swivel end of the adapter to a mating male NPT or specific NPSM fitting. The swivel nut allows the adapter body to be held stationary (or the connected hose/component to remain untwisted) while the nut is tightened. Ensure that the mating male fitting's sealing mechanism (e.g., its own tapered threads for NPT, or a specific seat for certain NPSM males) is correctly engaged to form the seal.
Always use appropriate backup wrenches on the adapter's hex body and the mating components during tightening to prevent over-torquing or damage to the fittings or connected lines.

Why Choose Delphi Fittings Part 1405?

Versatile Inter-Standard Connection: Effectively adapts female NPTF ports (accepting male NPTF/NPT) to female NPSM swivel connections, bridging two common pipe thread standards.
Simplified and Stress-Free Installation: The NPSM female swivel end allows for easy alignment and tightening without imparting torsional stress on the connected hose or component, preventing potential damage and leaks.
Reliable NPTF Sealing: The NPTF female end provides a proven Dryseal connection when mated with a male NPTF fitting, ensuring a high-integrity seal.
Durable Carbon Steel Construction: Manufactured from high-grade carbon steel for excellent strength and longevity in typical hydraulic and pneumatic system environments.
Enhanced Corrosion Resistance: Standard zinc plating provides robust protection against rust and other environmental corrosive factors, extending the service life of the adapter.
Adherence to Industry Standards: Both NPTF and NPSM threads conform to ANSI/ASME B1.20.1 & B1.20.3/SAE J476 specifications respectively, ensuring compatibility with other standard-compliant fittings.
Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system.

Get a Quote for Part 1405 - NPTF Female x NPSM Female Pipe Swivel Adapter

For reliable straight connections adapting female NPTF ports to female NPSM swivel ends, the Part 1405 adapter offers exceptional ease of installation and robust performance for your fluid power systems. Contact Delphi Fittings today for competitive wholesale pricing, bulk order information, and expert technical support.

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