The Double Swivel Female Adapters provide a secure, versatile connection between two male-threaded fire hose couplings, appliances, hydrants, and other water delivery equipment. Constructed from lightweight aircraft-grade 6061-T aluminum, these adapters are hard coat anodized to Military Specification Type III for outstanding corrosion resistance and long-lasting durability in demanding fire service environments.

Both ends feature NH female swivel rocker lug connections, allowing for fast installation, improved hose alignment, and easier coupling under pressure. Stainless steel ball bearings or aluminum roller bearings ensure smooth swivel operation without the use of plastic components. Available in a wide variety of NH size combinations to meet municipal firefighting and water supply requirements.

Features

• Double NH female swivel rocker lug threaded adapter
• Aircraft-grade 6061-T aluminum construction
• Military Specification Type III hard coat anodized finish
• Corrosion-resistant, lightweight design
• Female swivel connections for easier hose alignment and installation
• Stainless steel ball bearings or aluminum roller bearings—no plastic components
• Designed for municipal fire service and water supply applications
• Available in multiple NH thread size combinations

Available Sizes

Available in the following NH female swivel x NH female swivel size combinations:

• 1" x 1"
• 1.5" x 1"
• 1.5" x 1.5"
• 2" x 1.5"
• 2" x 2"
• 2.5" x 1.5"
• 2.5" x 2"
• 2.5" x 2.5"
• 3" x 2.5"
• 3" x 3"
• 3.5" x 2.5"
• 3.5" x 3"
• 3.5" x 3.5"
• 4" x 2.5"
• 4" x 3"
• 4" x 3.5"
• 4" x 4"
• 4.5" x 2.5"
• 4.5" x 3"
• 4.5" x 3.5"
• 4.5" x 4"
• 4.5" x 4.5"
• 5" x 2.5"
• 5" x 3"
• 5" x 3.5"
• 5" x 4"
• 5" x 4.5"
• 5" x 5"
• 6" x 2.5"
• 6" x 3"
• 6" x 3.5"
• 6" x 4"
• 6" x 4.5"
• 6" x 5"
• 6" x 6"

Specifications

• Manufacturer: Harrington
• Connection Type: NH Female Swivel Rocker Lug x NH Female Swivel Rocker Lug
• Thread Type: NH (National Hose)
• Material: Aircraft-Grade 6061-T Aluminum
• Finish: Type III Hard Coat Anodized
• Bearing Material: Stainless Steel Ball Bearings or Aluminum Roller Bearings
• Application: Fire Hose, Hydrant, Pump, Standpipe, and Water Delivery Connections