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Home Plumbing Rough Plumbing Supplies Pipe Fittings Black Pipe Fittings Black Plugs 521-807HN 1-1/2IN PLUG SQUARE HEAD BLACK

521-807HN 1-1/2IN PLUG SQUARE HEAD BLACK

PART 643645
SUPPLIER B & K LLC
SUPPLIER PART # 521-807HN
RANK B
SHELF PACK 4
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About this item

The B&K 1-1/2-in MIP Black Iron Plug (Model 521-807HN) is a square head plug designed to seal off female threaded fittings or pipes in non-potable plumbing and industrial systems. Constructed from black malleable iron, this plug is part of the 150-lb class fittings and is engineered for high-pressure applications. It is ideal for transporting lubricants, oils, greases, liquefied petroleum gases, natural gases, steam, and diesel.

This plug is not intended for potable water systems but excels in industrial environments where durability and sealing performance are critical. The threaded ends conform to ANSI/ASME B1.20.1 standards, and the relative softness of the metal helps ensure a secure seal under pressure.

Key Features

  • Material: Black malleable iron
  • Connection Type: MIP (Male Iron Pipe)
  • Head Type: Square head
  • Fitting Class: 150-lb malleable fittings
  • Pressure Rating: Up to 500 PSI at 150°F
  • Thread Standard: ANSI/ASME B1.20.1
  • Seal Quality: Enhanced by the relative softness of the metal
  • Compliance: Meets ASTM and ASME standards

Applications

  • Lubricant transport systems
  • Oil and grease lines
  • Liquefied petroleum (LP) gas systems
  • Natural gas systems (e.g., nitrogen, oxygen)
  • Steam systems
  • Diesel fuel systems
  • Industrial and DIY projects (non-potable)

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Brand LDR Malleables
Color Black
ModelNumber 521-807HN
InletDiameter(in) 1/1/2002
InletConnection MIP
Material Black Malleable Iron
HeadType Square
FittingClass 150-lb
MaximumPressure(PSI) 500
Temperature(°F) 150
ThreadStandard ANSI/ASME B1.20.1
SealQuality Soft metal for secure seal
Compliance Meets ASTM and ASME standards
UPC Code 032888406858
Shelf Pack 4
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