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FD90 Series SAE J1502 Interchange Diagnostic Quick Disconnect, Male Half, -04 Coupling, 1/8-27 Male NPT

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Description & Features

The Danfoss / Eaton Hansen FD90 Series Quick Disconnect Couplings Plug is engineered for precise diagnostic pressure testing in hydraulic systems. This coupling features a two-way valve type facilitating efficient connection and disconnection at pressures up to 500 psi. The -04 coupling size and 1/8-27 NPTF threads provide compatibility with various systems supported by the self-sealing valve design.

Constructed from zinc-plated steel this product ensures durability. It includes an automatic sleeve mechanism for one-hand push-to-connect operation. The flush face valving design minimizes fluid loss to 0.10 cubic centimeters and limits air inclusion to 0.02 cubic centimeters making it highly reliable for critical applications.

Standard Buna-N seals are integrated for optimal performance across a broad temperature range from -40deg;F upwards ensuring longevity and resilience. The couplingrsquo;s versatility is further enhanced by the diverse end configurations available optimizing system accessibility and ease of use in demanding environments.

MPN: FD90-1012-02-04

Supplier Part Number: FD90-1012-02-04

Specifications

A
1.60
Air Inclusion Max
0.02 Cubic_centimeter
Application
Diagnostic pressure testing for hydraulic systems
Coupling Size
-04
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.13
End Size 2
0.13
End Type 1
Push to Connect
End Type 2
NPTF
Fluid Loss
0.10 Cubic_centimeter
Minimum Working Temperature
-40
Safety locking Mechanism
Sleeve lock
Seal Material
Buna-N
Supplier Part Number
FD90-1012-02-04
Thread 1
1/8-27
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1FK54, Alternate Part Number MI-00298655, Alternate Part Number MINO-00015F47087, Alternate Part Number MINO-00015X11182
Product Weight
0.35 lbs

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Product Questions & Answers (3)

Question by: Steve R on Apr 29, 2025, 10:02 AM
got a test port that’s 1/8-27 nptf. is this the right male half for a -04 diagnostic quick disconnect?
Answer by: Customer Support on Apr 30, 2025, 9:03 PM
The key details match up: it is the male half in the FD90 Series with a -04 coupling size and 1/8-27 male NPTF threads, intended for diagnostic pressure testing in hydraulic systems.
Question by: Freddie P on Jul 22, 2025, 8:22 AM
Wondering if this’ll work for hydraulic pressure testing on my tractor?
Answer by: Customer Support on Jul 23, 2025, 12:02 PM
This FD90 series fitting is designed specifically for diagnostic pressure testing in hydraulic systems. The self-sealing valve lets you connect and disconnect with up to 500 psi pressure in the line.
Question by: Peggy S on Aug 9, 2025, 9:26 PM
what's the fluid loss on this thing when you connect or disconnect it? trying to keep my test rig clean and don't want hydraulic fluid spraying everywhere every time i hook up a gauge
Answer by: Customer Support on Aug 11, 2025, 1:58 PM
Fluid loss on connect and disconnect is held to 0.10 cubic centimeters, and air inclusion stays at 0.02 cubic centimeters. That flush face valve design is what keeps both of those numbers that low. For diagnostic work where you're swapping gauge ports regularly, that's about as clean as it gets in this coupling class.