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Stainless Steel Adapter 3/8 Inch NPT Female x 3/8 Inch BSPP Male with Sealing Washer, Zinc-Plated Steel Washer with Buna-N Seal, Max Pressure 3700 PSI, Temperature Range -30°F to 200°F

4.9 (3) Write Review
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$29.99

$ 15 .99 $15.99

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About this item

  • Effortless Thread Conversion: Connect 3/8 inch NPT female threads to 3/8 inch BSPP male threads with ease, making it an ideal solution for converting pipe styles in air and water systems.
  • Durable Stainless Steel Construction: Crafted from 304 stainless steel, this adapter is built for durability and corrosion resistance, ensuring long-lasting performance in industrial and commercial applications.
  • Superior Sealing Performance: Includes zinc-plated steel washers with Buna-N seals, providing a secure, leak-proof connection with better abrasion and weather resistance compared to traditional rubber or metal washers.
  • High Pressure and Temperature Resistance: Rated for up to 3700 PSI at 72°F, this adapter can handle high-pressure environments, while its temperature tolerance from -30°F to 200°F ensures reliable performance in extreme conditions.
  • Versatile Use for Air & Water: This adapter is designed for use with both air and water systems, offering a reliable and efficient solution for connecting different thread styles in various applications.


This Stainless Steel Adapter is a versatile and reliable solution for connecting 3/8 inch NPT female threads to 3/8 inch BSPP male threads. Made from durable 304 stainless steel, it ensures strength and longevity, making it ideal for both air and water systems. With a maximum pressure rating of 3700 PSI at 72°F and a temperature range from -30°F to 200°F, this adapter is built to perform in demanding environments. The included zinc-plated steel washers with Buna-N seals provide an excellent leak-proof connection, offering superior abrasion, oil, weather, and chemical resistance. These sealing washers create a tighter seal than rubber or metal washers, ensuring a secure fit in high-pressure and extreme temperature conditions. This adapter is perfect for industrial, commercial, and DIY applications where BSPP and NPT thread styles need to be connected.


ann sam
2025-05-27 16:41:48
Well made nice stainless adapter
mike
2025-05-21 15:11:06
fit perfectly
Karl W. Reissig
2025-01-26 10:49:08
Super quick shipping. Threads were exactly as described. Nice sealing washer included.