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3/8" x 1/4" FNPT x MNPT 316 SS Reducing Adapter MPN:6-4 RA-SS

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Brand: Parker
Part #: 6-4 RA-SS
SKU
510-G0896865
$87.98 for Order Qty of 2
Regular Price $61.59 Special Price $43.99

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3/8" x 1/4" FNPT x MNPT 316 SS Reducing Adapter

Connect pipes and fittings of different diameters with the Parker 6-4 RA-SS 316 stainless steel reducing adapter. Designed for use in air, natural gas, and oil systems, this adapter provides a 3/8-18 to 1/4-18 NPT reduction, ensuring a secure and reliable connection. With a maximum operating pressure of 5,300 psi and a temperature range of -425 to 1200 Degrees F, this adapter meets ANSI standards and is suitable for a variety of applications, including industrial, commercial, and residential settings. Its 316 stainless steel construction ensures durability and resistance to corrosion, making it a reliable choice for demanding systems.

Top product features:

  • 316 Stainless Steel construction
  • Female NPT connection of 3/8 inch on one side and a male NPT connection of 1/4 inch on the other side
  • Rated for use with air, natural gas, and oil systems within the specified ratings (5,300 psi max, -425 to 1200 F)

Top product applications:

  • Air
  • Natural Gas
  • Oil

The PARKER - 6-4 RA-SS is a 316 stainless steel reducing adapter designed to connect two pipes or fittings of different diameters. It features a female NPT connection of 3/8 inch on one side and a male NPT connection of 1/4 inch on the other side, providing a 3/8-18 (female) NPT to 1/4-18 (male) NPT reduction. Rated for use with air, natural gas, and oil systems within the specified ratings (5,300 psi max, -425 to 1200 F), it is rated for a maximum operating pressure of 5,300 psi. The fitting conforms to ANSI B31.1, ANSI B31.3, and ANSI B1.20.1 standards, with a temperature range from -425 Degrees to 1200 Degrees F.

Key Features:

  • - Material: 316 Stainless Steel
  • - Connection Types: Female NPT (3/8 inch) x Male NPT (1/4 inch)
  • - Overall Length: 1.44 in (1 7/16 in)
  • - Hex Size for wrenching: 7/8 in
  • - Thread Size: 3/8-18 (female) x 1/4-18 (male)
  • - Maximum Operating Pressure: 5,300 psi
  • - Temperature Range: -425 Degrees to 1200 Degrees F
  • - Applications: Air, Natural Gas, Oil
  • - Standards: ANSI B31.1, ANSI B31.3, ANSI B1.20.1
  • - Does not include pre-applied thread sealant or sealing components


Additional Information

  • Country of Origin: US
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 3.70
  • Package Width: 2.80
  • Package Height: 1.20
  • Package Weight: 0.65
  • California Prop 65 Warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Product info last updated on January 31, 2026 10:01pm UTC Category: Pipes, Valves and Fittings
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