Skip to content
Free Local Pickup ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple
STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple

STZ Industries 3/8 in. MIP each X 3/8 in. D MIP Black Steel 5-1/2 in. L Nipple

Meet a dependable, lead-free double-ended connection from STZ Industries—the 3/8 in. MIP x 3/8 in. MIP Black Steel Nipple, 5-1/2 in. long. This durable nipple is engineered for lea…

Stz Industries MPN 308UP38X512 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $3.99. Our online price is $3.99.
$3.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 5 · Order in multiples of 5

Sold by the Case · Save 15%

Take $3.00 off your case at checkout

Case of 5 · List Price $19.95
15% OFF with code at checkout $16.95
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 5. Apply casediscount at checkout to take 15% off your order.

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Meet a dependable, lead-free double-ended connection from STZ Industries—the 3/8 in. MIP x 3/8 in. MIP Black Steel Nipple, 5-1/2 in. long. This durable nipple is engineered for leak-resistant joins between female-threaded fittings, making it a smart choice for tight spaces in plumbing, HVAC, and light industrial projects. The black finish not only looks the part but also provides in-use corrosion resistance for everyday piping environments.

Technical specs

  • Length: 5-1/2 in
  • End 1: 3/8 in, MIP
  • End 2: 3/8 in, MIP
  • Material: Steel
  • Finish: Black
  • Maximum Pressure: 203 psi
  • Maximum Temperature: 400 °F
  • Lead Content: Lead-Free
  • Packaging: Bagged
  • Product Type: Nipple

Why this double-ended MIP nipple stands out

With MIP threads on both ends, this nipple is purpose-built to connect two female-threaded fittings, delivering a straight, secure run where space is limited. At 3/8 in. size, it matches a wide range of standard piping components found in residential and light commercial setups, making it a versatile, go-to solution for fast, reliable installations.

Practical use cases

  • Extending short runs behind sinks, appliances, or mechanical rooms where space constraints demand a compact connector.
  • Joining female adapters, valves, or unions in potable water lines or low-pressure air lines.
  • Replacing damaged sections in small-diameter copper or steel piping without reworking longer runs.

Installation tips for a dependable seal

  • Apply a compatible thread sealant or PTFE tape rated for the intended use (potable water or air) to the male threads.
  • Wrap tape in the direction of tightening and tighten to the manufacturer's recommended torque to avoid galling or leaks.
  • Avoid over-tightening, which can damage threads on steel fittings.

Stocked in a bagged packaging for organization and protection, this STZ Industries 3/8 in. MIP x 3/8 in. MIP Black Steel Nipple is ready to perform in your next project. The lead-free construction adds peace of mind for water-related installations, while the robust steel and black finish deliver long-lasting reliability in everyday piping tasks.

The Details Specifications

Brand Stz Industries
SKU 4195061
UPC 019442154196
Unit 0
Case Pack Quantity 25 per case
Retail Unit Quantity 5
Unit of Measure 0 0
Dimensions (L × W × H) 6 × 3 × 2
Weight 1 lbs
Cubic Feet 0.00212 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare