DELPHI FITTINGS
Part Number: 5404N-SS
NPT Pipe Seamless Male Nipple (Stainless Steel)
Product Overview
The Delphi Fittings Part 5404N-SS is a seamless male pipe nipple designed to connect two female NPT (National Pipe Taper) threaded ports or fittings in a straight line. Manufactured from high-quality stainless steel (typically Grade 316 SS) without a hex body, this nipple offers a smooth, continuous profile ideal for certain applications. The stainless steel construction provides excellent resistance to corrosion, chemicals, and extreme temperatures, making it a superior choice for use in marine, chemical processing, food and beverage, and other harsh environments. Its NPT threads conform to ANSI B1.20.1 standards, creating a seal through thread interference when properly assembled with sealant.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS for superior corrosion resistance) |
|---|---|
| Configuration | Male NPT Pipe x Male NPT Pipe Seamless Nipple (conforming to ANSI B1.20.1) |
| Body Style | Straight Seamless Nipple (no hex). |
| Sealing Mechanism | Tapered NPT threads form a seal through interference. Use of a compatible thread sealant (e.g., PTFE tape) is required for a leak-proof connection. |
| Corrosion Protection | Inherent to the stainless steel material; may be passivated to further enhance surface integrity. |
Commonly Available Sizes (Part #5404N-SS Series)
Delphi Fittings offers the 5404N-SS Stainless Steel NPT Seamless Male Nipple in a range of common nominal pipe sizes.
Examples include (Male NPT x Male NPT):
- 5404N-02-SS: 1/8" NPT x 1/8" NPT
- 5404N-04-SS: 1/4" NPT x 1/4" NPT
- 5404N-06-SS: 3/8" NPT x 3/8" NPT
- 5404N-08-SS: 1/2" NPT x 1/2" NPT
- 5404N-12-SS: 3/4" NPT x 3/4" NPT
- 5404N-16-SS: 1" NPT x 1" NPT
Applications
The Part 5404N-SS Stainless Steel Seamless Nipple is ideal for:
- Connecting two female NPT threaded components such as valves, tees, or manifolds in corrosive or high-purity environments.
- Applications where a smooth, hex-free profile is aesthetically or functionally desirable.
- Use in marine and offshore hydraulic systems, chemical processing plants, food and beverage facilities, pharmaceutical production, and water treatment systems.
- Providing a strong, durable, and leak-resistant in-line connection for stainless steel piping systems.
Installation & Usage Guidelines
- Ensure all mating female NPT threads and the male NPT threads of the nipple are meticulously clean and free from any damage or contaminants.
- Apply a thread lubricant or anti-galling paste suitable for stainless steel to the male threads. A compatible sealant (like PTFE tape) is also required to ensure a leak-proof seal.
- Thread one end of the nipple into the first female port by hand until snug.
- Since this nipple has no hex, tightening is typically achieved by gripping the body with a suitable tool (e.g., a pipe wrench with protective jaws to prevent scratching) or by tightening the mating female component onto the nipple.
- Tighten securely to achieve a leak-proof seal, but avoid over-tightening which can damage the threads or fittings.
Why Choose Delphi Fittings Part 5404N-SS?
- Seamless Profile: The hex-free body provides a smooth, continuous look for applications where aesthetics are a consideration.
- 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.
Get a Quote for Part 5404N-SS - NPT Pipe Seamless Male Nipple (Stainless Steel)
For durable, corrosion-resistant, and aesthetically clean in-line connections between two female NPT ports, the Part 5404N-SS Stainless Steel Seamless Nipple is an excellent choice. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support.
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