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FD90-1034-04-04 Hansen® by Danfoss | Quick Disconnect Diagnostic Coupling | FD90 Series | 1/4" Female NPT x 1/4" SAE J1502 Interchange | Plug | NBR Seal | Valved | Steel


Hansen® by Danfoss
FD90 Series | Diagnostic Coupling | SAE J1502 Interchange

Diagnostic Quick Disconnect

Danfoss Hansen FD90 Series diagnostic coupling is designed to connect and disconnect pressure gauges to hydraulic systems, eliminating the need for permanent gauges.

The maximum operating pressure is 7,000 psi.

Can I get a discount on my purchase?

Our listed prices are our lowest possible price with current costing but when volumes/value are high enough sometimes we can pass on a discount from the manufacturer.

Some products have predefined quantity discounts that will apply automatically, those pages have a table near the price describing the discount teirs.

If you feel your purchase quantity of a particular product is very large and want us to investigate with the manufacturer please feel free to Contact Us.

What if my item is out of stock?

All customers get an email regarding the shipping time frame of their purchase, usually within the business day. If your item is in stock we will ship within 1 business day, otherwise, the email will contain a lead time. If you do not receive this email, we recommend checking your email's spam folder. If you have any questions at that point please do not hesitate to Contact Us or chat below!

Can I get free shipping?

Shipping will calculate as free instantly if your order value exceeds $5000.

Some exceptions apply.

Free Freight is only available for the Contiguous USA.

Specifications for Variant SKU: FD90-1034-04-04 Danfoss
Brand: Hansen
Series: FD90 Series
Shape (Orientation): Straight
Material(s): Zink-Plated Carbon Steel
Special Properties: Valved
  • Automatic sleeve for one hand push-to-connect operation.
  • Flush face valving provides minimal fluid loss and low air inclusion.
  • Self-sealing valve design allows connection and disconnection at 500 psi.
Applications & Markets:
  • Diagnostic pressure testing for hydraulic systems.
  • Standard body material: High resistance carbon steel with Zinc trivalent plating.
  • Standard seal materials: Nitrile (NBR)
Coupling Body Size Max. Operating Pressure
Minimum Burst Pressure
Connected Only
Vacuum Rated Flow Air Inclusion Fluid Loss
bar psi bar psi in/hg lpm gpm cc.max. cc.max.
1/4" 483 bar 7,000 psi 1,931 bar 28,000 psi 28 in./Hg 1.89 lpm 0.6 gpm 0.02 cc. max 0.10 cc. max
Plug/Male | Figure 1
Socket/Female | Figure 2
Dimensions (Female Pipe, Valved)
Part Number Part Number
with Dust Cap
Coupling Type Body Size Port Size Thread Figure Dimensions
FD90-1034-02-04 FD90-1035-02-04 Plug/Male 1/4 " 1/8" 1/8 - 27 Female NPT 1 1.70"
- 0.62"
FD90-1021-02-04 - Socket/Female 1/4" 1/8" 1/8-27 Female NPT 2 1.95"
FD90-1034-04-04 FD90-1035-04-04 Plug/Male 1/4" 1/4" 1/4-18 Female NPT 1 1.90"
- 0.75"
FD90-1021-04-04 - Socket/Female 1/4" 1/4" 1/4-18 Female NPT 2 2.25"
Danfoss (Eaton - Aeroquip)

Danfoss (Eaton - Aeroquip)

Danfoss is a global technology leader in power management solutions that make electrical, hydraulic and mechanical power operate more efficiently, reliably, safely and sustainably. Danfoss hydraulic pumps, motors, transmissions, valves, cylinders, controls, hose and fittings offer a unique combination of proven technology and innovative design that translates directly into reliable performance and enhanced uptime.

Shop Parts by Danfoss (Eaton - Aeroquip)

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