The Aeroquip TTC Steel Crimp Fittings are designed for general-purpose low and medium pressure hydraulics. Specifically engineered for use where shock hazards exist, they are compatible with H277 or H435 hoses. Featuring a 7/16-24 male SAE inverted flare and a 45-degree elbow, this fitting is ideal for versatile hydraulic applications.
Constructed with steel wire braid and requiring no mandrel, this durable crimp fitting ensures a secure and leak-free connection. It holds its integrity with no need for thread sealant. The end size is 0.4375 inches with an inverted end type, make it suitable for line, hose, or tube connections.
Applications include a wide range of hydraulic needs within industrial settings, offering reliability under general-purpose conditions. Designed by Danfoss Power Solutions, this fitting exemplifies quality engineering.
Supplier Part Number: 1AA4MFA4
ECCN: EAR99
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Specifications
Application
General purpose low and medium pressure hydraulics. Use H277 or H435 where shock hazards exist
D
1.75
Drop Dimension
0.96
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 Type 1
Inverted
End Type 2
Line/Hose/Tube
H
0.96 in
Hose Size
-04
Mandrel Required
No
Supplier Part Number
1AA4MFA4
Thread 1
7/16-24
Thread Sealant
No
Alternate Part Numbers
Alternate Part NumberC1AQ15, Alternate Part Number MI-00301992, Alternate Part Number MINO-00015F50688
trying to swap out a fitting on a -04 hose, is this one the 7/16-24 male inverted flare style?
Answer by: Customer Support on May 11, 2025, 7:29 AM
The key callouts are 7/16-24 male threads with an SAE inverted flare end, and it is sized for a -04 hose. It is a 45 degree elbow crimp fitting in the Aeroquip TTC steel crimp fitting line.
Question by: Melvin M on May 28, 2025, 8:18 AM
Does this fitting work without any thread sealant, or do I need to tape the threads before putting it on?
Answer by: Customer Support on May 29, 2025, 9:13 PM
No sealant needed on the threads. The inverted flare connection on this fitting is self-sealing by design, so adding tape or pipe dope would actually be working against you. Just make sure the crimp is done correctly and the flare seats clean, and you'll get a solid leak-free connection.
Question by: Cindy B on Feb 26, 2026, 7:20 PM
Just want to make sure, this fitting will work with H277 hose if there's a chance of shock, right?
Answer by: Customer Support on Feb 28, 2026, 1:30 PM
That's correct. This Aeroquip TTC steel crimp fitting is designed to be compatible with H277 hose, especially in applications where shock hazards might exist.
Question by: Rusty K on Dec 19, 2025, 11:01 AM
got a -04 hose and need a 45 elbow with a 7/16-24 male inverted flare. is this the right crimp end?
Answer by: Customer Support on Dec 21, 2025, 6:56 AM
For a -04 hose setup, this fitting matches that hose size and gives you a 45 degree elbow with a 7/16-24 male SAE inverted flare end. It is a steel crimp style made for 1 and 2 wire braid hose, and it is called out as compatible with H277 or H435 hoses.