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Global TTC 1 & 2 Wire Braid Steel Crimp Fitting, 9/16-18 Male O-Ring Face Seal, -04 Hose, Straight

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Description & Features

The Aeroquip by Danfoss / Eaton 1A Series Crimp Hose Fittings Male ORS is designed for general purpose low and medium pressure hydraulic applications. This fitting, featuring a 9/16-18 male O-ring face seal, ensures reliable connections in demanding environments.

It integrates seamlessly with -04 hoses and is highly compatible with H277 or H435 hoses, especially where shock hazards exist. Engineered for resilience, this crimp fitting does not require a mandrel and uses no thread sealant, providing ease of installation and maintenance.

Manufactured under Danfoss Power Solutions, this straight steel crimp fitting is built to last, making it ideal for enhancing hydraulic performance.

Supplier Part Number: 1AA4MR4

Catalog Number: C1AQ21

Specifications

Application
General purpose low and medium pressure hydraulics. Use H277 or H435 where shock hazards exist
D
0.86
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 1
0.56
End Size 2
0.25
End Type 1
ORS
End Type 2
Line/Hose/Tube
Hose Size
-04
Mandrel Required
No
Supplier Part Number
1AA4MR4
Thread 1
9/16-18
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1AQ21, Alternate Part Number MI-00301974, Alternate Part Number MINO-00015F50670
Product Weight
0.10 lbs

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Product Questions & Answers (2)

Question by: Dwayne A on Oct 22, 2025, 9:28 AM
got a -04 hose and need a straight male ORFS end, is this the right fitting?
Answer by: Customer Support on Oct 23, 2025, 1:38 PM
For a straight crimp fitting on -04 hose with a 9/16-18 male O-Ring Face Seal (ORS) thread, this matches that setup. It is a TTC steel crimp fitting intended for 1 and 2 wire braid hose.
Question by: Donna P on Jan 20, 2026, 2:45 PM
fitting says no thread sealant needed -- is that right? felt weird not putting anything on it before crimping
Answer by: Customer Support on Jan 22, 2026, 8:31 AM
For O-ring face seal connections like this one, thread sealant isn't just unnecessary, it can actually work against you. The seal comes from the O-ring itself making contact with the flat face of the mating port, not from anything on the threads. Applying sealant can interfere with that metal-to-face contact and cause more problems than it solves. So yes, skip the sealant on this one.