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Smith-Cooper 1/8 in. MPT Stainless Steel 3 in. L Nipple

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

The Smith-Cooper 1/8 in. MPT Stainless Steel 3 in. L Nipple is your go-to compact connector for tight-passage piping jobs. Built from corrosion-resistant stainless steel and manufa…

Smith-Cooper MPN 4632100040 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $5.99. Our online price is $6.59.
$6.59
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About Product Overview

The Smith-Cooper 1/8 in. MPT Stainless Steel 3 in. L Nipple is your go-to compact connector for tight-passage piping jobs. Built from corrosion-resistant stainless steel and manufactured with lead-free material, this 3-inch nipple delivers dependable performance in demanding environments while keeping safety in mind.

Key advantages that set it apart

  • End 1: 1/8 in MPT (Male Pipe Thread) for a secure, standard-thread connection
  • Precise 3-inch length provides the reach you need in cramped spaces
  • Stainless steel construction offers superior corrosion resistance and longevity
  • Lead-free composition supports safer, code-compliant installations
  • Bagged packaging protects the nipple during shipping and storage
  • Brand you can trust — Smith-Cooper

Ideal applications

Perfect for small-diameter piping projects in plumbing, HVAC, and light-industrial settings where a durable, sanitary-ready connection is required. Use this nipple to extend or join threaded runs, bridge gaps between fittings, or adapt existing layouts in tight quarters where space is at a premium.

Installation notes and best practices

  • Prepare threads: clean the male threads and apply an appropriate pipe sealant or PTFE tape designed for metal connections
  • Engage threads evenly and tighten to a snug fit; avoid over-torquing to prevent thread damage
  • Inspect the joint after assembly and perform a leak test to ensure a secure seal

Specifications at a glance

  • Product Type: Nipple
  • Material: Stainless Steel
  • End 1 Diameter: 1/8 in
  • End 1 Type: MPT
  • Length: 3 in
  • Packaging Type: Bagged
  • Brand: Smith-Cooper
  • Lead Content: Lead-Free

Choose the Smith-Cooper 1/8 in. MPT Stainless Steel 3 in. L Nipple for a reliable, long-lasting connection that stands up to the demands of modern piping projects. Its compact size, durable material, and lead-free construction make it a smart choice for professional tradespeople and serious DIYers alike.

The Details Specifications

Brand Smith-Cooper
SKU 4215406
UPC 092201426291
Unit 0
Case Pack Quantity 5 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 1 × 2 × 6
Weight 0 lbs
Cubic Feet 0.00069 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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