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Brass Adapter, 1/8-27 Male NPT To 0.25 Inch Female 42 deg Inverted Flare, 90 deg Elbow

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Description & Features

Designed to meet rigorous hydraulic and instrumentation demands this brass adapter ensures reliable connections in hydraulic brake power steering fuel lines and transmission cooler lines. It also supports LP and natural gas applications on special order.

The Danfoss / Eaton inverted flare 90 male elbow features a 1/8-27 male NPT connection on one end and a 0.25-inch female 42-degree inverted flare connection on the other end. With a 90-degree elbow configuration this adapter is ideal for tight spaces where angular connections are required.

Manufactured by Danfoss Power Solutions (Aeroquip Inc-Alternate) this adapter boasts a sturdy brass construction for enhanced durability. Operating efficiently at a minimum working temperature of -65F it is designed to withstand harsh environments.

Benefitting from a precise drop dimension of 0.6600 inches this adapter ensures a secure and proper fit in various hydraulic and instrumentation setups. Its design eliminates the need for thread sealant simplifying installation while maintaining leak-free performance.

MPN: EAR99

Supplier Part Number: 402X4

Specifications

Alternate Part Numbers
Alternate Part Number C1HP69, Alternate Part Number MI-00333441, Alternate Part Number MINO-00925F73167
Application
Hydraulic brake, power
steering, fuel lines and
transmission cooler lines,
LP and natural gas (special
order).
instrumentation and hydraulic
systems.
Drop Dimension
0.66
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
0.13
End Size 2
0.44
End Type 1
NPTF
End Type 2
Inverted
L
0.92
M
0.33
Minimum Working Temperature
-65
Supplier Part Number
402X4
Thread 1
1/8-27
Thread Sealant
No
Tube O.D.
0.25
Tube O.D.
0.25
Product Weight
0.20 lbs

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Product Questions & Answers (3)

Question by: Shane P on Nov 11, 2025, 9:22 PM
trying to hook a 1/8 npt port to a 1/4 inverted flare line, is this the right elbow for that?
Answer by: Customer Support on Nov 13, 2025, 4:38 PM
For that hookup, it matches the thread types and sizes described: one end is 1/8-27 male NPT and the other end is a 0.25 inch female 42 degree inverted flare, built as a 90 degree elbow for an angled connection.
Question by: Jean B on Jul 2, 2025, 7:56 PM
fitting's got a 90-degree bend on it, right? trying to route a brake line in a real tight spot and a straight adapter just ain't gonna cut it
Answer by: Customer Support on Jul 4, 2025, 8:50 AM
the elbow on this one is a true 90 degrees. One end is 1/8-27 male NPT and the other is a 0.25-inch female 42-degree inverted flare. That combination makes it a solid pick for brake lines where you're working around other components and a straight fitting would put you in a bind. The brass construction holds up well in those kinds of applications too.
Question by: Frank S on Sep 6, 2025, 8:53 AM
Will this here fitting work okay for hooking up a transmission cooler line?
Answer by: Customer Support on Sep 8, 2025, 6:07 AM
This brass adapter is designed for use in transmission cooler lines, along with hydraulic brake, power steering, and fuel lines. It can also be used with LP and natural gas on special order.