1 inch Black Steel Nipple Run (Close to 6 inch)
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1″ Black Steel Nipple – Built for Structural Integrity and High-Pressure Systems
The 1″ Black Steel Nipple is manufactured for use in industrial and commercial-grade piping systems where strength and pressure resistance are critical. It is commonly used in conjunction with black malleable iron fittings for gas distribution, hydronic heating, and other low-pressure systems requiring threaded steel pipe components.
Product Performance Highlights
- ✅ Seamless Construction – Fabricated from Schedule 40 seamless steel pipe to ensure consistent wall thickness and durability.
- ✅ ASTM Compliant – Produced to meet ASTM A733 specifications for pipe nipples and ASTM A53 for steel pipe material standards.
- ✅ National Pipe Thread (NPT) – Precision-machined male threads provide secure, tapered connections suitable for use with compatible female-threaded fittings.
- ✅ Corrosion-Resistant Coating – Black oxide finish provides added surface protection for dry systems and indoor use.
Technical Specifications
- Material: Welded or seamless carbon steel (ASTM A53)
- Nominal Size: 1 inch
- Thread Type: NPT – Male x Male
- Standard Length: Available in close, 1″, 2″, up to 6″ and beyond depending on application needs
- Pressure Rating: Varies by system configuration; commonly used in systems operating under 150 psi
Installation Considerations
Threaded connections should be sealed with an approved pipe joint compound or PTFE thread sealant tape. Use appropriate torque to avoid damaging threads or fittings. For gas applications, confirm leak-free installation with a pressure test before system activation.
Applications
- • Natural gas and propane piping systems
- • Fire sprinkler and hydronic heating lines
- • Low-pressure steam applications
- • General-purpose utility piping
Did You Know?
Black steel pipe nipples should not be used in potable water systems due to the absence of corrosion protection for wet environments. For water supply lines, galvanized or brass fittings are generally preferred.
The 1″ Black Steel Nipple provides the mechanical strength and threaded precision required for code-compliant and dependable installations. It is a proven choice for contractors working in gas distribution, heating systems, and general utility piping.


Fast, Reliable Delivery for Every Order
At Primes Distribution, we understand that timely delivery is just as important as product quality. That’s why we partner with trusted carriers to make sure your plumbing, HVAC, and heating supplies arrive safely and on time.
Shipping Methods
We offer multiple shipping options to fit your needs:
Standard Shipping: 3–7 business days across the continental U.S.
Expedited Shipping: 1–3 business days for urgent orders.
Local Pickup: Available at our warehouse by appointment.
Order Processing
All in-stock orders are processed within 1–2 business days. You’ll receive a confirmation email once your order is placed and a tracking number as soon as it ships.
Orders placed after 3 PM or on weekends will be processed the next business day.
Shipping Costs
Shipping costs are calculated at checkout based on weight, dimensions, and delivery location. Large or heavy items (like water heaters or HVAC units) may require special freight handling.
Delivery Areas
We currently deliver throughout the United States. For bulk or international shipments, please contact our support team for a custom quote.
Damaged or Missing Items
If your shipment arrives damaged or incomplete, report it within 48 hours of delivery. Our support team will quickly arrange a replacement or refund.
Need Help?
If you have questions about your order or need help tracking a shipment, reach out to our customer support team at:
📧 sales@primesdistribution.com
📞 786-937-7081