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Fitting (Perm) 4S

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Description & Features

Engineered by Danfoss Power Solutions (II LLC Aeroquip) this fitting offers robust performance and durability. Crafted from high-quality carbon steel it delivers exceptional longevity and reliability in various applications. Designed to extend hose assembly life it features Dura-Kote plating for superior corrosion resistance.

Certified to meet SAE J1176 standards this fitting is an excellent choice for those seeking innovative engineering solutions. It includes a flanged end type 1 and line/hose/tube end type 2 compatibility ensuring a seamless integration into your existing setups.

Experience maximum uptime with this precision-engineered fitting tailored for professionals who demand top-tier components. It is not machine mountable and does not require a mandrel for its application.

ECCN: EAR99

Supplier Part Number: 4S12FLB8

Specifications

Brand
Aeroquip® by Danfoss
a Dimensions
3.35 in
Compatible Hose ID
3/4 in
Connection Size 1
1/2 in
Connection Size 2
3/4 in
Connection Type
Flanged, Hose
Connection Type 1
Hose
Connection Type 2
SAE Code 61 Flange
Construction Style
Crimp
Cut-Off Factor
2.28 in
Dimension Standards
SAE J1176
Dimensions
4.15 in L x 1.34 in W x 2.8 in H
Drop Dimensions
2.13 in
End Size 1
12
Finish
Zinc-Plated
Fitting Type
90 deg Elbow
For Use With
H430, H430R, H525H, H471, H810L, H600, H464 and H850 Series Hoses
Hose Dash Size
08
Inside Diameter
0.38 in
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Segment Code
A
Series
4S Series
Thread Sealant
Without Thread Sealant

Product Questions & Answers (3)

Question by: Hank S on Sep 30, 2025, 5:58 PM
does this fitting need a mandrel to put it on, or can you just press it straight onto the hose?
Answer by: Customer Support on Oct 1, 2025, 8:21 PM
No mandrel required for this one. It's a permanent fitting, so the installation process doesn't call for that extra tooling step. The 4S design handles the connection without it, which tends to make assembly go a bit smoother on the floor.
Question by: Hank T on Jun 30, 2025, 4:13 PM
trying to swap out an old Aeroquip fitting, is 4S12FLB8 the right part number for this one?
Answer by: Customer Support on Jul 1, 2025, 6:16 PM
For replacement matching, the supplier part number on this fitting is 4S12FLB8, and it also crosses to MI-00325732 and MINO-00015X01054.
Question by: Carl R on Jan 8, 2026, 6:59 PM
Is this fitting good for high-pressure applications, or should I be looking at something else?
Answer by: Customer Support on Jan 9, 2026, 7:44 PM
This fitting is made from carbon steel, offering good durability for various applications. It's certified to meet SAE J1176 standards, so it should hold up well, but make sure it's the right fit for your specific pressure requirements.

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