1/4 inch x 5 inch Stainless Steel Nipple

1/4" x 5" 304 Stainless Steel Nipple – Threaded Fitting for Corrosion-Resistant Applications

The 1/4" x 5" stainless steel nipple is a straight pipe fitting fabricated from seamless or welded Schedule 40 pipe, constructed with 304 stainless steel for enhanced corrosion resistance. It is used to connect two female-threaded components in process piping, water distribution, air handling, and non-hazardous gas systems. Threads conform to NPT standards and are machined to ANSI/ASME B1.20.1 specifications.

Technical Specifications

• Material: 304 stainless steel (UNS S30400)
• Nominal Size: 1/4 inch
• Length: 5 inches overall
• Wall Thickness: Schedule 40 (standard weight)
• Thread Type: NPT (National Pipe Taper), male x male, ANSI/ASME B1.20.1
• Manufacturing Standard: ASTM A312 or A733, depending on method of manufacture
• Operating Pressure: Suitable for systems up to 300 psi (verify per application)
• Temperature Range: -425°F to 1500°F (media dependent)

Installation Requirements

Before installation, verify that all mating threads are clean and undamaged. Apply PTFE tape or an approved thread sealant suitable for the system’s media and temperature range. Engage threads by hand, then tighten using a calibrated wrench to the recommended torque for 1/4" NPT fittings to prevent thread distortion or leaks.

Common Applications

This 304 stainless steel nipple is used in:

• Potable and non-potable water supply systems
• Compressed air and inert gas lines
• Chemical process piping where 304-grade corrosion resistance is adequate
• Thermal fluid circuits and utility piping

Material Performance Note

304 stainless steel provides strong resistance to oxidation, scaling, and general corrosion in indoor, dry, or mildly corrosive environments. For applications involving aggressive chemicals or chlorides, consider 316 stainless steel as an alternative. All 304 nipples should be installed per project specifications and pressure tested prior to system startup.