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STZ Industries 1/4 in. MIP each X 1/4 in. D MIP Black Steel 3-1/2 in. L Nipple

The STZ Industries 1/4 in. MIP x 1/4 in. MIP Black Steel Nipple, 3-1/2 in. long, is a compact, durable connector designed to bridge two female-threaded fittings with reliability yo…

Stz Industries MPN 308UP14X312 In Stock & Ready to Ship
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About Product Overview

The STZ Industries 1/4 in. MIP x 1/4 in. MIP Black Steel Nipple, 3-1/2 in. long, is a compact, durable connector designed to bridge two female-threaded fittings with reliability you can feel in every turn.

  • End connections: 1/4 in. MIP on both ends (MIP x MIP) for straightforward, secure threaded joins.
  • Material and finish: Solid steel with a black finish that resists corrosion in typical residential and light commercial piping applications.
  • Length: 3-1/2 inches, a practical size for tight spaces where longer nipples won’t fit.
  • Temperature and pressure tolerance: Rated for up to 188 psi and 400 degrees Fahrenheit, making it suitable for hot-water lines and other common piping tasks.
  • Lead-free: A lead-free option aligned with standard plumbing safety expectations.
  • Packaging: Sold bagged for easy handling and inventory management.

Where to use: This nipple is ideal for residential plumbing projects that require connecting two female 1/4 in. MIP fittings in water supply lines, appliance hookups, small-diameter piping on heating systems, or tight spaces where a compact connector is needed. The black steel construction provides dependable strength for everyday use and serviceability in protected environments.

  • Connecting two female 1/4 in. MIP fittings in water supply lines
  • Extending small-diameter piping in appliances or heating systems
  • Repairing or modifying existing runs where space constraints limit longer nipples

Why this STZ nipple stands out: The combination of precise 1/4 in. MIP threads, durable black steel finish, and a practical 3-1/2 in. length delivers dependable performance in real-world installations. Lead-free construction adds peace of mind for potable-water applications, while the bagged packaging keeps parts organized for quick replacements on job sites.

Pro tips for best results

  • Clean threads before installation and use an appropriate pipe thread sealant or PTFE tape rated for MIP connections.
  • Hand-tighten fully, then snug with a wrench—avoid over-tightening to prevent thread damage or leaks.
  • Ensure compatibility with adjacent metals to minimize galvanic corrosion in mixed-metal systems.

The Details Specifications

Brand Stz Industries
SKU 4193074
UPC 019442153281
Unit 0
Case Pack Quantity 25 per case
Retail Unit Quantity 5
Unit of Measure 0 0
Dimensions (L × W × H) 4 × 2 × 1
Weight 1 lbs
Cubic Feet 0.00161 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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