The Danfoss / Eaton pipe products reducer coupling designed for critical applications in grease refrigeration instrumentation and hydraulic systems ensures a reliable connection with its robust brass construction.
This brass adapter features a 3/8-18 female NPT end and a 1/4-18 female NPT end for a straight coupling configuration. Its compatibility with fuel LP and natural gas is available on special order expanding its utility in various industrial sectors.
Operational temperatures range from a minimum of -65F making it suitable for diverse environmental conditions. With distinct end sizes of 0.375 inches and 0.25 inches this adapter guarantees a precision fit for specific system requirements.
As part of the quality offerings from Danfoss Power Solutions (Aeroquip Inc-Alternate) this brass adapter is a crucial component within the UNSPSC: 40183100 category ensuring compliance and reliability.
Supplier Part Number: 3300X6X4
ECCN: EAR99
Specifications
Alternate Part Numbers
Alternate Part NumberC1HP19, Alternate Part Number FMC103-1754, Alternate Part Number MI-00333658, Alternate Part Number MINO-00925F73253
Application
Grease, refrigeration, instrumentation and hydraulic systems. Fuel, LP and natural gas available on special order.
trying to step down from 3/8 npt to 1/4 npt, is this the straight female to female piece?
Answer by: Customer Support on Nov 17, 2025, 8:48 PM
Function-wise, it is a reducer coupling that goes from 3/8-18 female NPT on one side to 1/4-18 female NPT on the other, and it’s a straight female-to-female adapter.
Question by: Bobby G on Dec 21, 2025, 11:20 AM
Got a refrigeration line running 3/8 female NPT and need to step it down to 1/4 female NPT without any elbows or bends involved. This straight brass reducer gonna do the trick?
Answer by: Customer Support on Dec 22, 2025, 3:01 PM
For a straight inline reduction from 3/8-18 female NPT down to 1/4-18 female NPT, that's exactly what this fitting is built to handle. Brass holds up well in refrigeration environments, and the straight configuration keeps your line routing clean without introducing any directional change. The minimum rated temperature of -65F also gives you solid headroom for typical refrigeration operating conditions.
