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
$2.69​/Each
Save 5%10+$2.55/Each
Save 10%20+$2.42/Each
Save 15%60+$2.28/Each
P-183
$2.69​/Each
In Stock
3/4" Aluminum Coupling Dust Plug
31122
3/4" Aluminum Coupling Dust Plug
$3.18​/Each
Save 5%10+$3.02/Each
Save 10%20+$2.86/Each
Save 15%60+$2.70/Each
P-183
$3.18​/Each
In Stock
1" Aluminum Coupling Dust Plug
31125
1" Aluminum Coupling Dust Plug
$3.11​/Each
Save 5%10+$2.95/Each
Save 10%20+$2.79/Each
Save 15%60+$2.64/Each
P-183
$3.11​/Each
In Stock
1-1/4" Aluminum Coupling Dust Plug
31135
1-1/4" Aluminum Coupling Dust Plug
$4.01​/Each
Save 5%10+$3.81/Each
Save 10%20+$3.60/Each
Save 15%60+$3.40/Each
P-183
$4.01​/Each
On Order
1-1/2" Aluminum Coupling Dust Plug
31136
1-1/2" Aluminum Coupling Dust Plug
$2.82​/Each
Save 5%10+$2.67/Each
Save 10%20+$2.53/Each
Save 15%60+$2.39/Each
P-183
$2.82​/Each
In Stock
2" Aluminum Coupling Dust Plug
31137
2" Aluminum Coupling Dust Plug
$3.55​/Each
Save 5%10+$3.37/Each
Save 10%20+$3.19/Each
Save 15%60+$3.01/Each
P-183
$3.55​/Each
In Stock
2-1/2" Aluminum Coupling Dust Plug
31138
2-1/2" Aluminum Coupling Dust Plug
$7.24​/Each
Save 5%10+$6.87/Each
Save 10%20+$6.51/Each
Save 15%60+$6.15/Each
P-183
$7.24​/Each
In Stock
3" Aluminum Coupling Dust Plug
31139
3" Aluminum Coupling Dust Plug
$5.91​/Each
Save 5%10+$5.61/Each
Save 10%20+$5.31/Each
Save 15%60+$5.02/Each
P-183
$5.91​/Each
In Stock
4" Aluminum Coupling Dust Plug
31140
4" Aluminum Coupling Dust Plug
$10.45​/Each
Save 5%10+$9.92/Each
Save 10%20+$9.40/Each
Save 15%60+$8.88/Each
P-183
$10.45​/Each
In Stock
6" Aluminum Coupling Dust Plug
31141
6" Aluminum Coupling Dust Plug
$24.25​/Each
Save 5%10+$23.03/Each
Save 10%20+$21.82/Each
Save 15%60+$20.61/Each
P-183
$24.25​/Each
In Stock