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Brass Adapter, 3/8-18 Male NPT To 3/4-16 Male SAE 45 deg Flare, 45 deg Elbow

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Description & Features

The Brass Adapter 3/8-18 Male NPT To 3/4-16 Male SAE 45 deg Flare 45 deg Elbow by Danfoss Power Solutions (Aeroquip Inc-Alternate) is engineered for LP and natural gas instrumentation refrigeration power steering and hydraulic and pneumatic systems.

The elbow features a 45-degree flare design which ensures a secure and robust connection between a 3/8-18 male NPT and a 3/4-16 male SAE. Designed for durability it operates in temperatures as low as -65F making it suitable for various demanding environments.

The adapter's construction from brass provides excellent resistance to corrosion and wear prolonging its lifespan and performance. It is a versatile component that fits multiple industrial applications contributing to system reliability.

This product does not come with thread sealant accommodating customization based on specific project needs. With precision threading it guarantees a tight and efficient seal essential for high-performance uses.

Segment Code: seg_code_a

Supplier Part Number: 54X8

MPN: EAR99

Specifications

Alternate Part Numbers
Alternate Part Number C1HQ57, Alternate Part Number FMC103-1709, Alternate Part Number MI-00334216, Alternate Part Number MINO-00925F73445
Application
LP and natural gas,
flammable liquids (special
order), instrumentation,
refrigeration, power
steering, hydraulic and
pneumatic systems.
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.38
End Size 2
0.75
End Type 1
NPTF
End Type 2
SAE
M
1.06
Minimum Working Temperature
-65
N
0.95
Supplier Part Number
54X8
Thread 1
3/8-18
Thread 2
3/4-16
Thread Sealant
No
Tube O.D.
0.50
Tube O.D.
0.5
Product Weight
0.18 lbs

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Product Questions & Answers (2)

Question by: Roger R on Jan 3, 2026, 5:04 PM
Will this fitting hold up ok if I use it for a propane line on my BBQ pit?
Answer by: Customer Support on Jan 5, 2026, 3:03 PM
It's made from brass which offers good corrosion resistance. Just be sure to order the special-order version, as the standard adapter is only rated for LP and natural gas, not general flammable liquids.
Question by: Dwight M on Sep 13, 2025, 1:26 PM
Does this fitting work for refrigeration lines, or is it strictly a hydraulic thing?
Answer by: Customer Support on Sep 15, 2025, 6:15 AM
Refrigeration is actually one of the listed applications for this adapter, right alongside hydraulic and pneumatic systems. It also covers LP and natural gas instrumentation and power steering setups, so it crosses into quite a few different trades. The brass construction holds up well against corrosion in those kinds of environments, and the 45-degree elbow angle helps when you need to route lines around tight spaces without forcing a hard bend in the tubing.