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Danfoss / Eaton Aeroquip FC8155-4040S Ftng (perm), 61-flange Steel Compatible Hose ID Flange

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Description & Features

Designed for demanding hydraulic applications, the Danfoss / Eaton Aeroquip FC8155-4040S Ftng (perm), 61-flange Steel Compatible Hose ID Flange is a carbon steel nipple assembly built for SAE Code 61 flange connections. With a -40 hose dash size and a flanged end type on one side mating to a line/hose/tube end on the other, this fitting is suited for large-bore, high-pressure hydraulic systems where reliable permanent crimping is required.

Constructed from carbon steel and finished with Dura-Kote plating, the fitting provides strong resistance to corrosion in harsh industrial environments. The FC8155 series is engineered to extend hose assembly service life and support maximum system uptime through consistent, repeatable performance. The 45-degree elbow configuration aids routing in space-constrained installations where straight fittings are not practical.

SKU: FC8155-4040S

Supplier Part Number (MPN): FC8155-4040S

Specifications

Brand
Aeroquip® by Danfoss
a Dimensions
6.89 in
Compatible Hose ID
2-1/2 in
Connection Size 1
2-1/2 in
Connection Size 2
2-1/2 in
Connection Type
Flanged, Hose
Connection Type 1
Hose
Connection Type 2
Female SAE Code 61 Split Flange
Construction Style
Crimp
Cut-Off Factor
1.66 in
Dimension Standards
SAE J518
Dimensions
8.54 in L x 3.31 in W x 4.8 in H
Drop Dimensions
1.657 in
End Size 1
40
Finish
Zinc-Plated
Fitting Type
45 deg Elbow
For Use With
2661 and FC619 Series Hoses
Hose Dash Size
40
Inside Diameter
2.1 in
Material
Steel
Material Construction
Carbon Steel
Series
FC8155 Series
Thread Sealant
Without Thread Sealant

Product Questions & Answers (2)

Question by: Randy A on May 1, 2025, 11:48 AM
Got a tight routing situation on a large-bore hydraulic line and a straight fitting just ain't gonna cut it. This the one with the 45-degree elbow, or am I lookin at the wrong part?
Answer by: Customer Support on May 2, 2025, 1:16 PM
Yeah, the FC8155-4040S does have a 45-degree elbow configuration, so it's built exactly for those situations where you can't run a straight line and need to work around tight clearances or nearby components. One end is a SAE Code 61 flange connection and the other mates to your line, hose, or tube. It's a permanent crimp fitting, so once it's on, it's on, but that's what gives you the reliable seal you need in high-pressure systems.
Question by: Pete B on Dec 11, 2025, 5:12 PM
Wondering if this Aeroquip fitting will hold up with some of the heavier hydraulic oils we use?
Answer by: Customer Support on Dec 13, 2025, 9:27 AM
Dura-Kote plating gives this fitting good corrosion resistance, which should help it hold up well even when exposed to the harsher chemicals common in hydraulic systems.

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