(423) 586-5650  |  Contact Us
Catalogs Order History & Status Statements Invoices
0
My Cart $-.--
Shop by Category
Quick Order
0
Home Plumbing Rough Plumbing Supplies Pipe Fittings Black Pipe Fittings 502069 1/2 BLACK COUPLING

502069 1/2 BLACK COUPLING

PART 642231
SUPPLIER CODA RESOURCES DBA STZ IND
SUPPLIER PART # 502069
RANK A
SHELF PACK 25
Calculating price...
QUANTITY

About this item

521‑203HN – 1/2″ Black Malleable Iron Coupling

Heavy-Duty Coupling for Black Pipe Systems

The 521‑203HN is a rugged, 1/2″ female-threaded coupling made from malleable black iron, designed for joining threaded steel pipes or nipples in gas, oil, air, and non-potable water systems. Built to meet ANSI/ASME standards, this coupling ensures strength, reliability, and leak-free performance in demanding environments.

Key Features

  • Durable Malleable Iron Construction – Provides superior strength and resistance to mechanical stress.
  • Precision NPT Threads – 1/2″ female NPT threads ensure a secure, leak-proof fit with standard black steel pipe.
  • Corrosion-Resistant Black Finish – Protects against rust and maintains an industrial look.
  • High Pressure & Temperature Tolerance – Suitable for applications up to 300–500 psi and temperatures up to 350°F.

Specifications

  • Model: 521‑203HN
  • Size: 1/2″ female NPT × 1/2″ female NPT
  • Material: Malleable iron with black oxide coating
  • Length: ~1.8″
  • Weight: ~0.18 lb
  • Pressure Rating: Up to 300–500 psi
  • Temperature Rating: Up to 350°F

Applications

  • Gas & Fuel Lines – Ideal for natural gas, LP gas, and oil systems.
  • Air & Steam Systems – Handles compressed air and low-pressure steam.
  • Industrial & Residential Piping – Perfect for HVAC, plumbing (non-potable), and mechanical systems.
  • DIY & Decorative Projects – Great for industrial-style furniture and shelving.

There are currently no resources for this product.

Brand B&K
Diameter 1/2 Inch
Inlet Connection FIP
Outlet Connection FIP
Product Length (in) 1.25
Product Height (in) 1.25
Product Width (in) 1.25
Product Weight (lbs) 0.2
Working Pressure (PSI) 232
Maximum Pressure (PSI) 300
Minimum Temperature (ºF) -20
Working Temperature (ºF) 77
Maximum Temperature (ºF) 347
Warranty Code 1-year limited warranty
Product Type Couplings
Product Material Malleable Iron
Standards HHXX, FM1920
UPC Code 019442146894
Shelf Pack 25
Minimum Order Qty 1
Supplier Name CODA RESOURCES DBA STZ INDUSTRIES
Supplier Short Name Coda Reso
Supplier Address 1 P.O. Box 6631
Supplier City 990 East North Ave Glendale Heights
Supplier State IL
Supplier Zip 60148
Country US
Supplier Email info@codaresources.com
Supplier Url www.codaresources.com
Buyer Name Michael Heck
Supplier Phone 718-485-4403
Supplier Fax (773) 265-3130
Also Known As STZ Ind
Drop Ship Order Min $2500
Return Policy Contact Factory for RGA
Rep Name Jimmy Tubbs
Rep Address 1420 Donelson Pike B6 Nashville, TN 37217
Rep Phone 615-331-8611
Rep Fax 615-832-8669
Rep Email jimmytubbs@gmail.com