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Extra Strong (XS) Steel Couplings

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  • Manufactured in accordance with ASTM Specification A865.
  • All sizes are taper tapped.
  • Non-recessed couplings will be supplied for sizes under 6 NPS unless otherwise specified.
  • Couplings above 6 NPS (150 DN) will be supplied recessed only.
  • Extra strong recessed couplings can be supplied in sizes under 6 NPS (750 DN).
  • Couplings 1/8 -1 1/2 NPS (6 - 40 DN) are dipped in rust preventative.
  • Couplings 2 NPS (50 DN) and larger are phosphated.
  • Galvanized full couplings are also available.
  • Half couplings are chamfered on one end and squared on the other.




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      Results 1 - 18 of 18 1 

    Item #

    Item Name

    NPS

    Outside Diameter

    Length (Full)

    Length (Half)

    Carton Quantity (Full)

    Carton Quantity (Half)

    337-1/8 Extra Strong (XS) Steel Couplings 1/8 0.563 inches 1 1/16 inches 15/32 inches 100 100
    337-1/4 Extra Strong (XS) Steel Couplings 1/4 0.719 inches 1 5/8 inches 3/4 inches 100 100
    337-3/8 Extra Strong (XS) Steel Couplings 3/8 0.875 inches 1 5/8 inches 3/4 inches 100 100
    337-1/2 Extra Strong (XS) Steel Couplings 1/2 1.063 inches 2 1/8 inches 1 inches 50 100
    337-3/4 Extra Strong (XS) Steel Couplings 3/4 1.313 inches 2 1/8 inches 1 inches 50 100
    337-1 Extra Strong (XS) Steel Couplings 1 1.576 inches 2 5/8 inches 1 1/4 inches 25 50
    337-1 1/4 Extra Strong (XS) Steel Couplings 1 1/4 2.054 inches 2 3/4 inches 1 5/16 inches 25 70
    337-1 1/2 Extra Strong (XS) Steel Couplings 1 1/2 2.200 inches 2 3/4 inches 1 5/16 inches 20 55
    337-2 Extra Strong (XS) Steel Couplings 2 2.875 inches 2 7/8 inches 1 3/8 inches 15 35
    337-2 1/2 Extra Strong (XS) Steel Couplings 2 1/2 3.375 inches 4 1/8 inches 2 inches N/A N/A
    337-3 Extra Strong (XS) Steel Couplings 3 4.000 inches 4 1/4 inches 2 1/16 inches N/A N/A
    337-3 1/2 Extra Strong (XS) Steel Couplings 3 1/2 4.625 inches 4 3/8 inches 2 1/8 inches N/A N/A
    337-4 Extra Strong (XS) Steel Couplings 4 5.200 inches 4 1/2 inches 2 3/16 inches N/A N/A
    337-5 Extra Strong (XS) Steel Couplings 5 6.296 inches 4 5/8 inches 2 1/4 inches N/A N/A
    337-6 Extra Strong (XS) Steel Couplings 6 7.390 inches 4 7/8 inches 2 3/8 inches N/A N/A
    337-8 Extra Strong (XS) Steel Couplings 8 9.625 inches 5 1/4 inches 2 9/16 inches N/A N/A
    337-10 Extra Strong (XS) Steel Couplings 10 11.750 inches 5 3/4 inches 2 13/16 inches N/A N/A
    337-12 Extra Strong (XS) Steel Couplings 12 14.000 inches 6 1/8 inches 3 inches N/A N/A
      Results 1 - 18 of 18 1 
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