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Home Plumbing Rough Plumbing Supplies Pipe Fittings Black Pipe Fittings Black Plugs 521-806HN 1-1/4IN PLUG SQUARE HEAD BLACK

521-806HN 1-1/4IN PLUG SQUARE HEAD BLACK

PART 643637
SUPPLIER B & K LLC
SUPPLIER PART # 521-806HN
RANK B
SHELF PACK 5
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About this item

The B&K Products 521-806HN is a high-quality 1-1/4-inch MIP (Male Iron Pipe) Black Iron Plug designed for sealing off female threaded fittings or pipes. This square head plug is part of the 150-lb class malleable fittings series and is ideal for industrial and DIY applications where durability and pressure resistance are essential.

Key Features:

  • Type: Square Head Plug
  • Material: Black Iron
  • Connection: MIP (Male Iron Pipe)
  • Size: 1-1/4 inch
  • Pressure Rating: Up to 500 PSI
  • Temperature Rating: Up to 150°F
  • Thread Standard: ANSI/ASME B1.20.1
  • Compliance: Meets ASTM and ASME standards
  • Class: 150-lb malleable fittings
  • Seal Quality: Relative softness of metal ensures a secure seal

Applications:

  • Transporting lubricant, oil, grease
  • Handling liquefied petroleum (LP) gas, natural gases (e.g., nitrogen, oxygen)
  • Use with steam and diesel
  • Ideal for non-potable water systems
  • Suitable for DIY plumbing and industrial projects

⚠️ Note: This fitting is not designed for potable water applications.

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Brand LDR Malleables
Color Black
Model 521-806HN
Product Name 1-1/4-in MIP Black Iron Plug
Type Square Head Plug
Material Black Iron
Connection Type MIP (Male Iron Pipe)
Size 1-1/4 inch
Pressure Rating 500 PSI
Temperature Rating 150°F
Class 150-lb class malleable fittings
Thread Standard ANSI/ASME B1.20.1
Compliance Meets ASTM and ASME standards
Applications Lubricant, oil, grease, LP gases, fuel, nitrogen, oxygen, steam, diesel
Potable Water Use Not designed for potable water applications
UPC Code 032888406841
Shelf Pack 5
Minimum Order Qty 1
Supplier Name B & K LLC
Supplier Short Name B & K /Mue
Supplier Address 1 2600 Elm Hurst Road
Supplier City Elk Grove Villa
Supplier State IL
Supplier Zip 60007
Country US
Supplier Email brett.merrick@colemanrussell.com
Supplier Url www.muellerindustries.com
Buyer Name Michael Heck
Supplier Phone (800) 782-2385
Supplier Fax (800) 421-7724
Our Customer Id 48813001
Return Policy Return to Wallace
Product Lines Valves, Faucets, Pipe Fittings
Rep Name Brett Merrick
Rep Address Rose Maria Lighthal l@ Factory
Rep Phone (800) 777-0270
Rep Cell (931) 510-7989
Rep Fax (205) 836-6528
Rep Email brett.merrick@colemanrussell.com
Rep Agency Coleman-Russell