Kuriyama-Couplings™ Aluminum Dust Plugs

Applications for these cam-and-groove 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
1/2" Aluminum Coupling Dust Plug
31121
1/2" Aluminum Coupling Dust Plug
$2.54​/Each
Save 5%10+$2.41/Each
Save 10%20+$2.28/Each
Save 15%60+$2.15/Each
P-161
$2.54​/Each
In Stock
3/4" Aluminum Coupling Dust Plug
31122
3/4" Aluminum Coupling Dust Plug
$3.01​/Each
Save 5%10+$2.86/Each
Save 10%20+$2.70/Each
Save 15%60+$2.55/Each
P-161
$3.01​/Each
In Stock
1" Aluminum Coupling Dust Plug
31125
1" Aluminum Coupling Dust Plug
$2.95​/Each
Save 5%10+$2.80/Each
Save 10%20+$2.65/Each
Save 15%60+$2.50/Each
P-161
$2.95​/Each
In Stock
1-1/4" Aluminum Coupling Dust Plug
31135
1-1/4" Aluminum Coupling Dust Plug
$3.79​/Each
Save 5%10+$3.60/Each
Save 10%20+$3.41/Each
Save 15%60+$3.22/Each
P-161
$3.79​/Each
On Order
1-1/2" Aluminum Coupling Dust Plug
31136
1-1/2" Aluminum Coupling Dust Plug
$2.66​/Each
Save 5%10+$2.52/Each
Save 10%20+$2.39/Each
Save 15%60+$2.26/Each
P-161
$2.66​/Each
In Stock
2" Aluminum Coupling Dust Plug
31137
2" Aluminum Coupling Dust Plug
$3.35​/Each
Save 5%10+$3.18/Each
Save 10%20+$3.01/Each
Save 15%60+$2.84/Each
P-161
$3.35​/Each
In Stock
2-1/2" Aluminum Coupling Dust Plug
31138
2-1/2" Aluminum Coupling Dust Plug
$6.85​/Each
Save 5%10+$6.50/Each
Save 10%20+$6.16/Each
Save 15%60+$5.82/Each
P-161
$6.85​/Each
In Stock
3" Aluminum Coupling Dust Plug
31139
3" Aluminum Coupling Dust Plug
$5.59​/Each
Save 5%10+$5.31/Each
Save 10%20+$5.03/Each
Save 15%60+$4.75/Each
P-161
$5.59​/Each
In Stock
4" Aluminum Coupling Dust Plug
31140
4" Aluminum Coupling Dust Plug
$9.88​/Each
Save 5%10+$9.38/Each
Save 10%20+$8.89/Each
Save 15%60+$8.39/Each
P-161
$9.88​/Each
In Stock
6" Aluminum Coupling Dust Plug
31141
6" Aluminum Coupling Dust Plug
$22.92​/Each
Save 5%10+$21.77/Each
Save 10%20+$20.62/Each
Save 15%60+$19.48/Each
P-161
$22.92​/Each
In Stock