Optimize your grease, refrigeration, instrumentation, and hydraulic systems with this reliable brass adapter. Engineered to connect male NPT threads of different sizes, this straight hex nipple is a versatile solution for joining 1/4-18 male NPT to 1/8-27 male NPT.
Manufactured by Danfoss Power Solutions, renowned for quality and durability, this adapter ensures consistent performance in various industrial applications. It withstands a wide temperature range, operating effectively from -65deg;F, making it suitable for demanding environments.
The hex design aids in easy installation and removal, offering a secure and leak-resistant connection. Made from robust brass, it provides excellent corrosion resistance and longevity in harsh conditions. This adapter is also available for special order in fuel, LP, and natural gas applications.
End Type 1 and End Type 2 are both NPTF, ensuring compatibility with standard NPT threads for a seamless connection. Note that this adapter does not include thread sealant, allowing for customized application requirements.
MPN: 3325X4X2
Supplier Part Number: 3325X4X2
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Specifications
Alternate Part Numbers
Alternate Part NumberC1HP25, Alternate Part Number MI-00333676, Alternate Part Number MINO-00015X05702, Alternate Part Number MINO-00925F73256
Application
Grease, refrigeration, instrumentation and hydraulic systems. Fuel, LP and natural gas available on special order.
trying to step a line down, is this the straight brass piece that goes from 1/4-18 male NPT to 1/8-27 male NPT?
Answer by: Customer Support on Oct 7, 2025, 5:02 PM
For a simple size step-down, it’s a straight hex nipple with male NPTF threads on both ends, one side 1/4-18 and the other 1/8-27.
Question by: Shawn B on Apr 26, 2025, 9:15 AM
Will this here fitting work alright for hooking up some refrigeration lines?
Answer by: Customer Support on Apr 28, 2025, 6:52 AM
This adapter is often used in refrigeration systems, along with grease, instrumentation, and hydraulic setups.
Question by: Chad C on Nov 20, 2025, 2:15 PM
Does this adapter need any kind of thread sealant, or does it come with something already applied to the threads?
Answer by: Customer Support on Nov 22, 2025, 6:21 AM
Nothing is pre-applied to the threads on this one. It ships without any sealant, so you get to choose what works best for your setup, whether that's PTFE tape, a paste compound, or whatever you normally run. That actually makes it easier to match your existing system requirements, especially in instrumentation or refrigeration lines where certain sealants are preferred over others.
