The Brass Adapter 0.25 Inch Female 42 deg Inverted Flare To 1/8-27 Male NPT Straight offers reliable performance for specialized applications including hydraulic brake power steering fuel lines and transmission cooler lines.
The design of this adapter ensures seamless integration with LP and natural gas systems on special order basis. With a robust construction from brass it provides excellent resistance to corrosion and high durability.
The adapter features a 42 inverted flare to pipe end type with a UNF end size of 0.4375 inches on the female side and an NPTF end size of 0.125 inches on the male side delivering effective connections under various operating conditions.
It is designed to function efficiently within a temperature range starting from -40 degrees ensuring versatility across different environments. This product is manufactured under the DANFOSS Power Solutions (Aeroquip Inc-Alternate) brand known for high-quality hydraulic and fluid conveying products.
Supplier Part Number: 202X4
Specifications
Alternate Part Numbers
Alternate Part NumberC1HN59, Alternate Part Number MI-00333370, Alternate Part Number MINO-00925F73124
Application
Other - Hydraulic brake, power steering, fuel lines and transmission cooler lines, LP and natural gas (special order)
got a 1/4 female inverted flare line, will this screw right into a 1/8-27 npt port or am i mixin up fittings
Answer by: Customer Support on Jan 11, 2026, 6:44 AM
Connection-wise, it’s made for exactly that changeover: a 0.25 inch female 42 degree inverted flare on one end, and a 1/8-27 male NPT (NPTF) pipe thread on the other, in a straight adapter body.
Question by: Hubert R on Oct 22, 2025, 10:16 AM
Will this fitting hold up okay if I'm using it for my fuel lines?
Answer by: Customer Support on Oct 24, 2025, 10:00 AM
This brass adapter is suitable for fuel lines, along with hydraulic brakes, power steering, and transmission cooler lines. It's also designed for LP and natural gas systems, but only on a special order basis.
