DELPHI FITTINGS
Part Number: 5404-SS
NPTF Pipe Male Hex Nipple (Stainless Steel)
Product Overview
The Delphi Fittings Part 5404-SS is a high-quality hex head nipple designed to connect two female NPT (National Pipe Taper) or NPTF (Dryseal) threaded ports or fittings of the same size. Manufactured from premium stainless steel (typically Grade 316 SS), this hex nipple offers excellent resistance to corrosion, chemicals, and extreme temperatures. Its NPTF (Dryseal) threads are machined to higher tolerances to create a metal-to-metal seal with a female NPTF port, making it a superior choice for demanding applications in marine, chemical processing, food and beverage, and other harsh environments where standard steel fittings may not suffice. The hexagonal body provides a convenient surface for wrench engagement during installation.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS for superior corrosion resistance) |
|---|---|
| Configuration | Male NPTF Pipe x Male NPTF Pipe Hex Nipple (conforming to ANSI B1.20.3 / SAE J476) |
| Body Style | Straight Hexagonal Nipple. |
| Sealing Mechanism | NPTF Dryseal threads are designed to create a metal-to-metal seal when mated with female NPTF ports. If connecting to standard NPT female ports, the use of a compatible thread sealant (e.g., PTFE tape) on the male threads is required for optimal sealing. |
| Corrosion Protection | Inherent to the stainless steel material; may be passivated to further enhance surface integrity. |
Commonly Available Sizes (Part #5404-SS Series)
Delphi Fittings offers the 5404-SS Stainless Steel NPTF Male Hex Nipple in a range of common nominal pipe sizes.
Examples include (Male NPTF x Male NPTF):
- 5404-02-SS: 1/8" NPTF x 1/8" NPTF
- 5404-04-SS: 1/4" NPTF x 1/4" NPTF
- 5404-06-SS: 3/8" NPTF x 3/8" NPTF
- 5404-08-SS: 1/2" NPTF x 1/2" NPTF
- 5404-12-SS: 3/4" NPTF x 3/4" NPTF
- 5404-16-SS: 1" NPTF x 1" NPTF
Note: For unlisted sizes, different stainless steel grades (e.g., 304), or other custom requirements, please contact our sales team.
Applications
The Part 5404-SS Stainless Steel Hex Nipple is ideal for:
- Connecting two female NPT or NPTF threaded components such as valves, tees, or manifolds in environments where superior corrosion resistance is critical.
- Use in marine and offshore hydraulic systems, chemical processing plants, food and beverage facilities, pharmaceutical production, and water treatment systems.
- Applications involving corrosive fluids, high humidity, saltwater spray, or frequent cleaning cycles where carbon steel fittings would degrade.
- Providing a strong, durable, and leak-resistant in-line connection for stainless steel piping systems.
Installation & Usage Guidelines
- Ensure all mating female NPT/NPTF threads and the male NPTF threads of the nipple are meticulously clean and free from any damage or contaminants.
- While NPTF threads are designed for a dry seal, it is highly recommended to apply a thread lubricant or anti-galling paste suitable for stainless steel to both male threads. This will prevent galling and ensure a smooth, secure connection. If mating with standard NPT female ports, a compatible sealant (like PTFE tape) is required.
- Thread one end of the nipple into the first female port by hand until snug.
- Use appropriate wrenches on the hex body of the nipple and on the mating components to tighten securely. Tighten until a leak-proof seal is achieved, but avoid over-tightening which can damage the threads or fittings.
Why Choose Delphi Fittings Part 5404-SS?
- Superior Corrosion Resistance: Manufactured from high-grade stainless steel (typically 316 SS), offering maximum durability in harsh chemical, marine, or sanitary environments.
- Reliable Sealing: NPTF Dryseal threads provide a robust metal-to-metal seal, minimizing the risk of leaks in critical applications.
- Durable Construction: The solid hex body design ensures high mechanical strength and provides an easy surface for wrenching.
- Wide Chemical & Temperature Compatibility: Stainless steel allows for use with a broader range of fluids and across a wider temperature range compared to carbon steel.
- Standard Compliance: Conforms to ANSI B1.20.3 / SAE J476 standards, ensuring compatibility with standard NPTF and NPT female ports.
- Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system.
Get a Quote for Part 5404-SS - NPTF Pipe Male Hex Nipple (Stainless Steel)
For durable, corrosion-resistant, and reliable in-line connections between two female NPT/NPTF ports, the Part 5404-SS Stainless Steel Hex Nipple is an excellent choice for your demanding applications. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support.
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