Phone: (0086) 185-8864-8174 | Email: hello@delphi-fittings.com Request a Quote
NPTF Pipe Male Hex Nipple - Part 5404

Part Number: 5404

NPTF Pipe Male Hex Nipple

Product Overview

The Delphi Fittings Part 5404 is a precision-engineered NPTF Pipe Male Hex Nipple, designed to securely connect two female NPT (National Pipe Taper) or NPTF (National Pipe Taper Fuel / Dryseal) threaded ports or fittings. This fitting features male NPTF Dryseal threads on both ends for a reliable, leak-proof metal-to-metal seal. Constructed from high-strength carbon steel, its distinguishing hexagonal body allows for easy and secure installation using a standard wrench. This makes it an ideal choice for various hydraulic, pneumatic, and general industrial applications requiring a durable male-to-male connection.

Key Features & Specifications

Material High-Grade Carbon Steel
Thread Type NPTF (Dryseal) Male x NPTF (Dryseal) Male (ANSI B1.20.3, SAE J476)
Body Style Hexagonal (Hex) Nipple for wrench tightening
Sealing Mechanism Metal-to-metal seal achieved by thread interference, designed for effectiveness without sealant.
Corrosion Protection Standard Zinc Plating for enhanced durability and corrosion resistance. Custom plating options may be available.
Primary Function To connect two female NPT or NPTF threaded components in a straight line.
Working Pressure Suitable for a wide range of hydraulic system pressures. Specific ratings depend on size and application. Contact us for detailed specifications.
Temperature Range Suitable for standard hydraulic operating temperatures, dependent on system fluids and application.

Commonly Available Sizes (Part #5404 Series)

Delphi Fittings manufactures the NPTF Pipe Male Hex Nipple in a variety of standard sizes to accommodate diverse connection needs. Common configurations typically include (Male NPTF x Male NPTF):

  • 5404-02: 1/8" NPTF Male x 1/8" NPTF Male
  • 5404-04: 1/4" NPTF Male x 1/4" NPTF Male
  • 5404-06: 3/8" NPTF Male x 3/8" NPTF Male
  • 5404-08: 1/2" NPTF Male x 1/2" NPTF Male
  • 5404-12: 3/4" NPTF Male x 3/4" NPTF Male
  • 5404-16: 1" NPTF Male x 1" NPTF Male
  • 5404-20: 1-1/4" NPTF Male x 1-1/4" NPTF Male
  • 5404-24: 1-1/2" NPTF Male x 1-1/2" NPTF Male
  • 5404-32: 2" NPTF Male x 2" NPTF Male

Note: This list represents common straight nipple sizes. For reducing hex nipples (e.g., 1/4" NPTF Male x 1/8" NPTF Male) or other specific dimensions, please contact us to discuss availability and custom manufacturing capabilities. The `5404N` and `5404L` series offer seamless and long nipple variations respectively, which can be explored under NPT Pipe Fittings.

Applications

The Part 5404 NPTF Male Hex Nipple is a versatile fitting used across many industries:

  • Connecting valves, gauges, and other components with female NPTF threads in hydraulic power units.
  • Joining sections of pipe or hose assemblies in pneumatic systems.
  • Fluid transfer lines in manufacturing and processing plants.
  • Mobile and stationary industrial equipment.
  • Agricultural machinery and heavy-duty vehicles.
  • Instrumentation and control systems.
  • General plumbing and piping where a secure, high-pressure male-to-male connection is needed.

Installation & Usage Guidelines

  • Inspect all threads (male nipple ends and female ports) for cleanliness and any signs of damage prior to assembly.
  • Align the hex nipple with the female ports accurately to prevent cross-threading.
  • Thread the nipple into the female ports by hand as far as possible.
  • Use a correctly sized wrench on the hexagonal body of the nipple to tighten securely. If connecting to another fixed component, use a backup wrench on that component to prevent over-stressing.
  • While NPTF threads are designed for a dry seal, applying a compatible thread lubricant (not sealant) can ease assembly, prevent galling, and ensure optimal metal-to-metal contact, especially in higher-pressure applications. If mating with standard NPT female threads, a suitable thread sealant on the male nipple threads is recommended.
  • Tighten to the appropriate torque specifications for the size and application. Avoid over-tightening, as this can damage the threads or the connected components.

Why Choose Delphi Fittings Part 5404?

  • Secure Installation: The hex body provides excellent grip for wrenches, allowing for proper torque and secure tightening.
  • Leak-Proof Performance: Precision NPTF Dryseal threads ensure a tight seal, minimizing potential leaks and enhancing system reliability.
  • Robust Construction: Manufactured from high-quality carbon steel for strength and longevity in tough operational environments.
  • Standard Compliance: Meets relevant industry standards (SAE J476, ANSI B1.20.3) for dimensional accuracy and performance.
  • Versatility: Suitable for a broad range of pressures, temperatures, and fluid media typical in hydraulic and pneumatic systems.
  • Quality Manufacturing: Produced under Delphi Fittings' ISO 9001:2015 certified quality management system.

Get a Quote for Part 5404 - NPTF Pipe Male Hex Nipple

Looking for reliable NPTF Male Hex Nipples? Contact Delphi Fittings today for wholesale pricing, information on bulk orders, or to discuss any custom fitting requirements you may have.

Request a Quote Back to NPT Fittings