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AGN Interstate Pneumatics CPA640 3/8 Inch Automotive Steel Coupler Plug x 1/4 Inch Female NPT P13145039AGN-CPA640-D https://cdnimages.opentip.com/full/AGN/AGN-CPA640.jpg Interstate Pneumatics CPA640 3/8 Inch Automotive Steel Coupler Plug x 1/4 Inch Female NPT Manufacturer Part Number: CPA640Interstate Pneumatics 3/8\" Automotive Steel Coupler Plug x 1/4\" Female NPT series plugs are forged from tool steel, heat treated and zinc plated to increase hardness, durability and corrosion resistance. These plugs are interchangeable with the automotive (Tru-flate) standard series plugs produced by other manufacturers. Maximum operating pressure 300 PSI.Details: Specifications: Body: Forged tool steel, heat treated and zinc plated Plug Body: 3/8\" Type: Automotive (Tru-Flate) Threads: 1/4\" NPT Female More Information: Model#CPA640BrandInterstate PneumaticsUPC791674904915CA Prop 65California Proposition 65 13145039 791674904915 0.1200lbs 0.00 0.00 0.00
Interstate Pneumatics
2.45 2027-06-06 In Stock
customer review - by , November 11, 2025
4/ 5stars
Nice coupler, but I find aluminum couplers don't mate very well with brass. It works, but you have to really force it.

Interstate Pneumatics CPA640 3/8 Inch Automotive Steel Coupler Plug x 1/4 Inch Female NPT

stars Rating 4 | 1 reviews
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UPC: 791674904915
SKU: AGN-CPA640
Price: $2.45
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Product Description

Manufacturer Part Number: CPA640

Interstate Pneumatics 3/8" Automotive Steel Coupler Plug x 1/4" Female NPT series plugs are forged from tool steel, heat treated and zinc plated to increase hardness, durability and corrosion resistance. These plugs are interchangeable with the automotive (Tru-flate) standard series plugs produced by other manufacturers. Maximum operating pressure 300 PSI.

Details:
Specifications:
  • Body: Forged tool steel, heat treated and zinc plated
  • Plug Body: 3/8"
  • Type: Automotive (Tru-Flate)
  • Threads: 1/4" NPT Female


More Information:

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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By Steven P.
Date: November 21, 2025
Nice coupler, but I find aluminum couplers don't mate very well with brass. It works, but you have to really force it.
Rating: 4 stars [4 of 5 Stars!]
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