The Aeroquip TTC Steel Crimp Fittings are specifically engineered for general purpose low and medium pressure hydraulics, showcasing the robustness required in demanding industrial applications. The fitting features a 90-degree elbow design, supporting efficient fluid transfer in confined spaces.
Its male SAE inverted flare connection, with a thread size of 7/16-24, ensures a secure, leak-resistant link with compatible components. The 1.69-inch drop dimension facilitates compatibility with a range of hydraulic setups.
The 1AA4MFB4 part number signifies its precise specification, built to accommodate -04 size hoses without needing a mandrel. This versatile fitting is adaptable to both H277 and H435 hoses, particularly where shock hazards are prevalent.
Manufactured by Danfoss Power Solutions (II LLC Aeroquip), this fitting maintains high standards of durability and reliability to meet industry-specific needs.
Catalog Number: C1AQ16
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Specifications
Application
General purpose low and medium pressure hydraulics. Use H277 or H435 where shock hazards exist
D
1.37
Drop Dimension
1.69
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 1
0.44
End Size 2
0.25
End Type 1
Inverted
End Type 2
Line/Hose/Tube
H
1.69 in
Hose Size
-04
Mandrel Required
No
Supplier Part Number
1AA4MFB4
Thread 1
7/16-24
Thread Sealant
No
Alternate Part Numbers
Alternate Part NumberC1AQ16, Alternate Part Number MI-00301995, Alternate Part Number MINO-00015F50691
Trying to swap out an old elbow fitting, is this one the 7/16-24 male inverted flare on one end and a -04 hose crimp on the other?
Answer by: Customer Support on Feb 8, 2026, 6:21 AM
For fit confirmation, it matches a 7/16-24 male SAE inverted flare on the thread end and it crimps onto a -04 hose on the other side. It is a 90 degree elbow style, so the outlet turns at a right angle.
Question by: Ronnie L on Mar 8, 2026, 11:32 AM
Will this fitting work with a standard hydraulic setup on my tractor?
Answer by: Customer Support on Mar 10, 2026, 8:50 AM
This Aeroquip TTC steel crimp fitting is designed for general-purpose, low- to medium-pressure hydraulic systems. If your tractor's hydraulics fall within that pressure range, and you're using either H277 or H435 hoses, it should be compatible.
Question by: Dwight W on Apr 28, 2025, 1:07 PM
fitting says it works with H277 and H435 hose, does that mean it wont work on other hose types, or is that just where they recommend it?
Answer by: Customer Support on Apr 29, 2025, 9:43 PM
Those two hose types, H277 and H435, are specifically called out for applications where shock hazards are a concern. The fitting itself is built for general purpose low and medium pressure hydraulic lines, so the hose compatibility really comes down to matching the -04 hose size and the crimp spec. The H277 and H435 callout is more of a safety-condition recommendation than a hard exclusion for every other hose. That said, only use hose types you can confirm are rated for this fitting's crimp spec.