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home > 304 Stainless Steel Threaded Pipe Fittings — 1/2" NPT Nipples, Elbows, Tee & Caps > 304 Stainless Steel Threaded Pipe Fittings — 1/2" NPT Nipples, Elbows, Tee & Caps

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304 Stainless Steel Threaded Pipe Fittings — 1/2" NPT Nipples, Elbows, Tee & Caps304 Stainless Steel 1 2" NPT Threaded Pipe Fittings Reliable Connections for Water, Air & Fluid Systems Leaking joints, corroded fittings, and mismatched thread standards are the bane of any plumbing or fluid system project. Whether you're a homeowner extending a water line, a contractor building an irrigation manifold, or a DIYer setting up a compressed air system, you need 1 2" NPT threaded pipe fittings that thread on cleanly, seal reliably, and

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304 Stainless Steel 1/2" NPT Threaded Pipe Fittings — Reliable Connections for Water, Air & Fluid Systems

Leaking joints, corroded fittings, and mismatched thread standards are the bane of any plumbing or fluid-system project. Whether you're a homeowner extending a water line, a contractor building an irrigation manifold, or a DIYer setting up a compressed-air system, you need 1/2" NPT threaded pipe fittings that thread on cleanly, seal reliably, and hold up over time without rusting out.

Each piece in this lineup is machined from 304 stainless steel with standard 1/2" NPT (National Pipe Taper) threads. Straight nipples are available in lengths from 30mm (≈1-3/16") to 500mm (≈19-11/16"), covering short close-nipple runs all the way to extended pipe spans. Fittings include 90° elbows in both F&F and M&M configurations, a three-way tee (F&F&F), a straight coupling/muff (F&F), and a pipe cap (F&F). Order in quantities of 1, 2, 5, or 10 pieces to match your project scale.

Typical applications include residential and commercial water supply lines, compressed-air distribution systems, outdoor irrigation and garden plumbing, and industrial fluid transfer setups where corrosion resistance and thread integrity are non-negotiable.

🔗 Compatibility: 1/2" NPT (National Pipe Taper) thread standard — compatible with standard 1/2" NPT male and female fittings, valves, and pipe used throughout North America. Not compatible with BSP threads without an adapter.

✅ Key Features of These 304 Stainless Steel 1/2" NPT Pipe Fittings

🦾 304 Stainless Steel Construction — Machined from 304 SS for solid corrosion resistance in water, air, and mild chemical environments, without the weight penalty of heavier alloys.
🔩 Full 1/2" NPT Thread Engagement — Tapered NPT threads cut to standard spec ensure a tight, leak-resistant fit with PTFE tape — no special tools or adapters needed for North American pipe systems.
📏 Wide Length Range for Nipples — Straight nipples span 30mm to 500mm (≈1-3/16" to ≈19-11/16"), letting you bridge exact gaps in your pipe run without cutting or welding.
🔄 Five Fitting Configurations — 90° elbows (F&F and M&M), tee (F&F&F), coupling/muff (F&F), and cap (F&F) cover the most common layout changes and terminations in a single product family.
📦 Flexible Quantity Options — Available in 1, 2, 5, or 10-piece sets so you can grab a single replacement piece or stock up for a larger installation without overpaying for bulk minimums.
🏭 Broad Application Compatibility — Suited for water supply, compressed-air lines, irrigation manifolds, and light industrial fluid transfer — anywhere a reliable 1/2" NPT threaded connection is required.

📐 Technical Specifications — 304 Stainless Steel 1/2" NPT Threaded Pipe Fittings

Material	304 Stainless Steel (18-8)
Thread Standard	1/2" NPT (National Pipe Taper)
Nipple Lengths Available	30mm (≈1-3/16"), 40mm (≈1-9/16"), 50mm (≈1-31/32"), 60mm (≈2-3/8"), 70mm (≈2-3/4"), 80mm (≈3-1/8"), 100mm (≈3-15/16"), 150mm (≈5-29/32"), 200mm (≈7-7/8"), 250mm (≈9-13/16"), 300mm (≈11-13/16"), 350mm (≈13-3/4"), 400mm (≈15-3/4"), 450mm (≈17-11/16"), 500mm (≈19-11/16")
Fitting Types	90° Elbow F&F, 90° Elbow M&M, Tee F&F&F, Coupling/Muff F&F, Cap F&F
Quantity Options	1 Pcs, 2 Pcs, 5 Pcs, 10 Pcs (fittings only for 10-pc option)
Wall Thickness	See variant options / Contact us to confirm
Pressure Rating	Typically up to 150 PSI (Class 150) for water at ambient temp — contact us to confirm for specific applications
Finish	Mill / brushed stainless (natural 304 SS finish)
Recommended Sealant	PTFE (Teflon) tape — 2–3 wraps on male threads
Typical Applications	Water supply, compressed air, irrigation, light industrial fluid transfer
Origin	Contact us to confirm

⚠️ Heads up: Wall thickness and exact pressure ratings vary by fitting type and length. If your application involves elevated pressure, steam, or gas lines, please contact us to confirm suitability before ordering.

❓ Frequently Asked Questions

How do I choose the right nipple length for my pipe run?

Measure the gap between your two threaded female ports, then subtract the thread engagement depth on each end — typically 8–11mm per end for 1/2" NPT. The remaining center-to-center distance is the nipple length you need. Available lengths run from 30mm (≈1-3/16") to 500mm (≈19-11/16"). When in doubt, size up — a slightly longer nipple is easier to work with than one that's too short.

What pressure rating can these fittings handle?

304 stainless steel threaded fittings in 1/2" NPT generally handle working pressures up to 150 PSI (Class 150) for water and non-corrosive fluids at ambient temperatures. Actual ratings depend on the specific wall thickness and application fluid. Contact us to confirm suitability for high-pressure or high-temperature systems.

Are these fittings suitable for outdoor or marine use?

Yes. 304 stainless steel offers good corrosion resistance in most outdoor environments. For coastal or salt-spray environments, 316 stainless steel is generally recommended for superior chloride resistance. In typical outdoor plumbing, irrigation, or garden applications, 304 SS performs well with proper installation and periodic inspection.

What thread standard do these fittings use — NPT or BSP?

These fittings use 1/2" NPT (National Pipe Taper) threading, the standard used throughout North America. NPT threads are tapered and create a seal through thread interference, typically with PTFE tape. They are not directly compatible with BSP (British Standard Pipe) threads without an adapter.

Do I need thread sealant tape with these fittings?

Yes. For liquid or gas applications, applying 2–3 wraps of PTFE (Teflon) tape to the male threads before assembly is strongly recommended. This ensures a leak-free seal and makes future disassembly easier. Avoid pipe dope compounds not rated for stainless steel, as some can cause stress corrosion cracking over time.

Which fitting type should I choose — F&F elbow, M&M elbow, Tee, Muff, or Cap?

90° F&F Elbow — female threads on both ends; connects two male-threaded pipes at a right angle.
90° M&M Elbow — male threads on both ends; fits into two female-threaded ports.
Tee (F&F&F) — three female ports; splits one line into two branches.
Muff / Coupling (F&F) — joins two male-threaded pipe ends in a straight line.
Cap (F&F) — closes off an open male-threaded pipe end.

Can I use these fittings for gas lines?

304 stainless steel NPT fittings are generally compatible with natural gas and propane in residential applications, but gas line installations typically require fittings certified to local codes (e.g., ANSI/CSA). Always verify local code requirements and consult a licensed plumber or gas fitter before using any fitting in a gas application.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

304 Stainless Steel Threaded Pipe Fittings — 1/2" NPT Nipples, Elbows, Tee & Caps

Name: 304 Stainless Steel Threaded Pipe Fittings — 1/2" NPT Nipples, Elbows, Tee & Caps
Brand: tug-ottendorf-okrilla.de
SKU: 27853162068
Price: 144.00 USD
Availability: InStock
Rating: 4.432 (1387 reviews)