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Danfoss / Eaton Aeroquip Hose Fitting. Steel Crimp

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Description & Features

Designed for general purpose low and medium pressure hydraulic circuits, this carbon steel crimp hose fitting from Eaton Aeroquip features a male straight thread O-ring swivel (ORS) end with a -4 hose dash size and a 7/16-inch thread diameter. The swivel configuration simplifies installation by allowing the fitting to rotate during assembly, reducing hose stress at the connection point.

The Danfoss / Eaton Aeroquip Hose Fitting. Steel Crimp is finished with Dura-Kote plating, providing strong resistance to corrosion in demanding industrial environments. Engineered as part of Eaton Aeroquip's 1A Series crimp system, the fitting is designed to extend hose assembly service life and support consistent performance under normal operating conditions. Where shock hazards are a factor, Eaton recommends using H277 or H435 series hose in place of standard assemblies. Fluid compatibility data is available through Eaton's published documentation for reference during product selection.

SKU: 1AA4SB4

Supplier Part Number (MPN): 1AA4SB4

Alternate Part Numbers: C1KJ20

Specifications

Brand
Aeroquip® by Danfoss
a Dimensions
2.52 in
Compatible Hose ID
1/4 in
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Hose, Male SAE ORB
Connection Type 1
Hose
Connection Type 2
Male SAE Adjustable ORB
Construction Style
Crimp
Cut-Off Factor
1.59 in
Dimension Standards
SAE J1176
Dimensions
2.52 in L
End Gender 1
Male
End Size 1
7/16 in
Finish
Dura-Kote™
Fitting Type
Hose Fitting
For Use With
2661, EC115, EC118, EC215, EC881, FC510, FC579, FC611, FC619, FC639, FC693, FC735, FC839B, FC849, FC849B, GH120, GH195, GH194, GH681, GH663, GH781, GH793 and WH004 Series Hoses
Hex Size
3/4 in
Hose Dash Size
04
Inside Diameter
0.17 in
Manufacturing Cage Code
VAN WERT OH - 0X660
Material
Steel
Material Construction
Carbon Steel
Seal Material
NBR
Series
1A Series
Thread Sealant
Without Thread Sealant
Thread Size
7/16-20
Thread Type
UNF

Product Questions & Answers (3)

Question by: Shane W on May 24, 2025, 8:59 AM
fitting rotates during assembly or is it fixed once crimped on?
Answer by: Customer Support on May 26, 2025, 6:47 AM
The swivel is on the male ORS end, so it rotates freely during installation to help you position the hose without twisting it under load. Once everything is tightened down the hose end is crimped and stays put, but that swivel makes a real difference when you're working in a tight spot and need to thread things in without fighting the hose.
Question by: Ronnie M on Jul 24, 2025, 5:23 PM
Will this fitting work with regular hydraulic hose or do I gotta get special Aeroquip stuff?
Answer by: Customer Support on Jul 26, 2025, 6:06 AM
This fitting is engineered as part of the Eaton Aeroquip 1A Series crimp system. Using it with Aeroquip hose is recommended to ensure optimal performance and extend the service life of your hose assembly.
Question by: Dustin H on Sep 10, 2025, 7:08 AM
trying to swap out an old crimp end. is this one a -4 hose fitting with a 7/16 thread, ORS swivel?
Answer by: Customer Support on Sep 11, 2025, 8:37 AM
It matches a -4 hose dash size and uses a male straight thread O-ring swivel (ORS) end with a 7/16 inch thread diameter (0.4375).

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