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Brass Adapter, 7/16-20 Male SAE 45 deg Flare To 7/16-20 Male SAE 45 deg Flare, Straight

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Description & Features

Engineered for durability the Danfoss / Eaton SAE 45 Flare Union is designed to meet the rigorous standards of various industrial applications. This brass adapter is ideal for LP and natural gas flammable liquids (special order) instrumentation refrigeration power steering hydraulic and pneumatic systems.

Constructed with 7/16-20 male SAE 45 flare ends on both sides it ensures a secure and precise fit. Its robust brass construction provides long-lasting performance making it suitable for demanding environments.

Featuring a 0.4375-inch end size on both sides and fitting 0.25-inch tube O.D. this adapter offers broad compatibility with diverse equipment. Identified by the segment code seg_code_a it falls under the UNSPSC 40183100 classification and adheres to ECCN EAR99.

MPN: 42X4

Supplier Part Number: 42X4

Specifications

Alternate Part Numbers
Alternate Part Number C1HP88, Alternate Part Number MI-00333084, Alternate Part Number MINO-00015X06506, Alternate Part Number MINO-00925F73017
Application
Other - 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
0.44
End Size 2
0.44
End Type 1
SAE 45
End Type 2
SAE 45
L
1.19
Supplier Part Number
42X4
Thread 1
7/16-20
Thread 2
7/16-20
Thread Sealant
No
Tube O.D.
0.25
Tube O.D.
0.25
Product Weight
0.03 lbs

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Product Questions & Answers (3)

Question by: Dwayne B on Jul 1, 2025, 8:17 PM
Will this fitting work for hooking up a refrigeration system?
Answer by: Customer Support on Jul 3, 2025, 6:55 AM
Absolutely, this brass adapter is designed for refrigeration systems. It's also suitable for LP and natural gas, flammable liquids (on special order), instrumentation, power steering, and hydraulic and pneumatic setups.
Question by: Tony F on Dec 11, 2025, 5:19 PM
got a union fitting that needs replacing on a 1/4 inch OD tube line running through our pneumatic setup, both ends are 7/16-20 SAE 45 flare male. this the right part?
Answer by: Customer Support on Dec 13, 2025, 6:21 AM
For a 1/4 inch OD tube with 7/16-20 male SAE 45 flare connections on both sides, this is exactly what you want. The 42X4 has matching male flare ends on both sides at that thread size and is built to fit 0.25 inch tube OD. It works in pneumatic systems, so your application lines right up.
Question by: Lance P on May 20, 2025, 6:52 AM
got two 7/16-20 flare fittings i need to join straight together, is SKU 42X4 the right little union for that
Answer by: Customer Support on May 21, 2025, 9:07 PM
For a straight union between two SAE 45 degree flare connections, this adapter matches 7/16-20 male SAE 45 degree flare on both ends. It is also sized for 0.25 inch tube O.D. with a 0.4375 inch end size on each side.