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
Stock Description Catalog Pg. Price
Kuriyama-Couplings™ Aluminum Dust Plugs
31121
1/2" Aluminum Coupling Dust Plug
$2.42​/Each
Save 5%10+$2.29/Each
Save 10%20+$2.17/Each
Save 15%60+$2.05/Each
P-149
$2.42​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31122
3/4" Aluminum Coupling Dust Plug
$2.87​/Each
Save 5%10+$2.72/Each
Save 10%20+$2.58/Each
Save 15%60+$2.44/Each
P-149
$2.87​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31125
1" Aluminum Coupling Dust Plug
$2.80​/Each
Save 5%10+$2.66/Each
Save 10%20+$2.52/Each
Save 15%60+$2.38/Each
P-149
$2.80​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31135
1-1/4" Aluminum Coupling Dust Plug
$3.61​/Each
Save 5%10+$3.43/Each
Save 10%20+$3.24/Each
Save 15%60+$3.06/Each
P-149
$3.61​/Each
Special Order
Kuriyama-Couplings™ Aluminum Dust Plugs
31136
1-1/2" Aluminum Coupling Dust Plug
$2.53​/Each
Save 5%10+$2.40/Each
Save 10%20+$2.27/Each
Save 15%60+$2.15/Each
P-149
$2.53​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31137
2" Aluminum Coupling Dust Plug
$3.19​/Each
Save 5%10+$3.03/Each
Save 10%20+$2.87/Each
Save 15%60+$2.71/Each
P-149
$3.19​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31138
2-1/2" Aluminum Coupling Dust Plug
$6.52​/Each
Save 5%10+$6.19/Each
Save 10%20+$5.86/Each
Save 15%60+$5.54/Each
P-149
$6.52​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31139
3" Aluminum Coupling Dust Plug
$5.32​/Each
Save 5%10+$5.05/Each
Save 10%20+$4.78/Each
Save 15%60+$4.52/Each
P-149
$5.32​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31140
4" Aluminum Coupling Dust Plug
$8.98​/Each
Save 5%10+$8.53/Each
Save 10%20+$8.08/Each
Save 15%60+$7.63/Each
P-149
$8.98​/Each
In Stock
Kuriyama-Couplings™ Aluminum Dust Plugs
31141
6" Aluminum Coupling Dust Plug
$21.83​/Each
Save 5%10+$20.73/Each
Save 10%20+$19.64/Each
Save 15%60+$18.55/Each
P-149
$21.83​/Each
In Stock