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Kuriyama-Couplings™ Aluminum Dust Plugs
Kuriyama-Couplings™ Aluminum Dust Plugs
Applications for these couplings include agriculture, chemicals/petroleum, construction and material handling.
  • ASTM B85 Grade 383 aluminum alloy is designed for high tensile strength, lightness & rigidity
  • Forged brass handles for less wear on connecting parts
  • Zinc-plated carbon steel handle pins, pull rings & safety clips
  • Buna-N gaskets
  • Safety clip, locking feature prevents disconnection during use (all except 1/2")
  • Comply with Mil-Spec A-A-59326 for interchangeability (all except 1/2")
  • Pressure rating at 70°F: 1/2"-2" 250 psi, 2-1/2"-4" 150 psi & 6" 75 psi
Item # Description Page # List Price Availability Quantity to Order
Kuriyama-Couplings™ Aluminum Dust Plugs31121
1/2" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$2.68
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31122
3/4" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$3.19
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31125
1" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$3.12
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31135
1-1/4" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$4.02
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31136
1-1/2" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$2.81
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31137
2" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$3.55
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31138
2-1/2" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$7.25
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31139
3" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$5.91
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31140
4" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$9.98
Each
Kuriyama-Couplings™ Aluminum Dust Plugs31141
6" Aluminum Coupling Dust Plug
Qty 10: 5% off; Qty 20: 10% off; Qty 60: 15% off;
P-139
$24.26
Each
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