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Brass Adapter, 1/2-14 Female NPT To 3/8-18 Male NPT, Straight

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Description & Features

Designed for precision in various industrial applications, the Danfoss / Eaton Pipe Products Adapter ensures reliable connections in grease, refrigeration, instrumentation, and hydraulic systems. Crafted for durability, it seamlessly integrates with fuel, LP, and natural gas systems, available on special order.

This adapter features a 1/2-14 female NPT threaded connection paired with a 3/8-18 male NPT thread, ensuring compatibility with a range of industrial components. Its robust brass construction provides longevity and resistance to wear and corrosion.

With a versatile temperature range from -65deg;F, this adapter stands up to rigorous conditions. The absence of thread sealant ensures integrity and prevents potential leaks, making it suitable for sensitive applications.

Supplier Part Number: 3200X8X6

Specifications

Connection Size 1
1/2 in
Connection Size 2
3/8 in
Connection Type
FNPT, MNPT
Connection Type 1
Female NPTF
Connection Type 2
Male NPTF
Dimension Standards
SAE 130139
Dimensions
1.47 in L
Finish
Nickel-Plated
Fitting Type
Adapter
For Use With
Brass, Bronze and Iron Pipes
Material
Brass
Material Construction
Brass
Series
3200X Series
Thread Sealant
Without Thread Sealant
Thread Size
1/2-14 x 3/8-18

Product Questions & Answers (2)

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Question by: Warren M on May 26, 2025, 4:55 PM
got a line with 1/2-14 female npt on it now, and i need to step down to 3/8-18 male npt. is this the straight adapter for that?
Answer by: Customer Support on May 28, 2025, 1:42 PM
For that kind of step down, it matches a 1/2-14 female NPTF on one end and a 3/8-18 male NPTF on the other, in a straight pipe to pipe brass adapter.
Question by: Billy W on Sep 5, 2025, 6:19 PM
brass or not, will this adapter hold up in a hydraulic system runnin grease lines without leaking all over the place?
Answer by: Customer Support on Sep 7, 2025, 8:38 AM
Brass construction on this fitting handles grease system applications without issue. The threads are NPT on both ends, which taper to form a mechanical seal when properly installed. No thread sealant comes pre-applied, so you'll want to use an appropriate sealant or tape on the threads before running it in a pressurized grease line. That absence of factory sealant is actually a plus for sensitive systems where contamination matters.

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