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Danfoss / Eaton Hansen and Gromelle 3804 Plug Steel 3/8-18 IN NPTF Male 3/8 IN Body Size

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Description & Features

Designed for robust industrial applications, the Danfoss / Eaton Hansen and Gromelle 3804 Plug is crafted from durable carbon steel, ensuring reliability in demanding environments. Suitable for construction, maintenance, and repair tasks, this plug features a 3/8-18 IN NPTF male connection and a 3/8 IN body size, providing compatibility with various pneumatic tools and in-plant systems. The quick connect and disconnect functionality, coupled with a safety pin locking mechanism, enhances operational efficiency without the need for specialized tools.

Exceeding ISO 16028 operating pressures, this plug ensures a secure and leak-free connection. With a flow rate of 374 gallons per minute, it supports high-volume applications efficiently. The Buna-N seal material offers excellent fluid compatibility, making it a versatile choice for diverse industrial settings. As part of the trusted Hansen sub-brand under Eaton Aeroquip, this product delivers dependable performance.

SKU: 3804

Supplier Part Number (MPN): 3804

Specifications

Brand
Aeroquip® by Danfoss
Angle Shape
Straight
Connection Size 1
3/8 in
Connection Size 2
3/8 in
Connection Style
Manual
Connection Type
MNPT, Push-Fit
Connection Type 1
Male NPTF
Connection Type 2
Male Push-to-Connect
Dimensions
1.91 in L x 0.79 in W x 0.79 in H
Finish
Zinc-Plated
Fitting Type
Male Half Coupling
For Use With
Compressed Air, Gases and Liquids
Hex Size
11/16 in
Latch Type
Push/Pull
Material
Steel
Material Construction
Carbon Steel
Maximum Operating Pressure
250 psi
Safety Locking Mechanism
Pin Lock
Seal Material
Nitrile
Series
310 Series
Thread Sealant
Without Thread Sealant
Thread Size
3/8-18
Valve Type
2-Way

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Product Questions & Answers (2)

Question by: Freddie J on Jul 5, 2025, 8:09 PM
trying to swap out an old Hansen plug, is this 3804 the one with a 3/8-18 NPTF male thread and a 3/8 body?
Answer by: Customer Support on Jul 7, 2025, 11:17 AM
It’s a Hansen male half plug with a 3/8-18 NPTF male pipe thread and a 3/8 inch body size, made in carbon steel with a Buna-N seal. It’s the 210/310 Series quick disconnect plug style and uses a push-to-connect end.
Question by: Norm M on May 7, 2025, 1:05 PM
does this plug use a pin lock or some other kind of locking setup? got burned before buying couplings that came loose under pressure
Answer by: Customer Support on May 9, 2025, 8:41 AM
Pin lock is what holds this one together. It's a mechanical retention system built into the coupling that keeps the plug seated even when line pressure is working against it. For maintenance and repair setups where vibration or pressure spikes are a concern, that's the kind of security you want on a quick disconnect.

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