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1000/400/500 Series MIL-C-4109 Industrial Interchange Air Quick Disconnect, Male Half, -04 Coupling, 1/4-18 Male NPT

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Description & Features

Designed to meet the dimensional requirements of Mil-C-4109 for industrial interchangeability, the 1000/400/500 Series MIL-C-4109 Industrial Interchange Air Quick Disconnect, Male Half, -04 Coupling, 1/4-18 Male NPT from Dixon Valve & Coupling is a steel male plug built for reliable, single-hand push-to-connect air line use. The automatic sleeve engages with a simple push, while a protective collar reduces the risk of accidental snagging or disconnection during operation.

A 360° swivel eliminates hose kinking, and the pin latching mechanism provides secure engagement. Standard seal material is Buna-N. The -04 coupling size connects via 1/4-18 male NPT thread. This fitting is compatible with Aeroquip FD40 Series counterparts, making it well-suited for pneumatic tool and industrial air system applications where interchange with common standards is required. Maximum operating pressure varies by model series, Dixon models are rated to 300 PSI.

SKU: DCP2502

Supplier Part Number (MPN): DCP2502

Alternate Part Numbers: C1FJ24, MI-00296250, MINO-00240F44753

Specifications

Brand
DIXON
Connection Size 1
3/8 in
Connection Size 2
1/4 in
Connection Type
MNPT, Quick-Disconnect
Connection Type 1
Quick Disconnect
Connection Type 2
Male NPT
Dimensions
1-7/8 in L
Fitting Type
Plug
Hex Size
5/8 in
Material
Steel
Material Construction
Steel
Operating Temperature
-40 to 250 deg F
Sg Maximum Operating Pressure
Aeroquip Models 500 psi, Oetiker Models 360 psi, Milton Models 300 psi, Dixon Models 300 psi
Sg Milton Coupling Features
Ideal for Use when Male Half Type is not Known, Accepts Male Halves from Aeroquip FD40 Series, Aeroquip FD41 Series (Aro 210), Tru-flate and Parker (Automotive), Rust Resistant - Made of Heavy-Duty Brass, Push Type - Body Engages Automatically, Drag Guard
Sg Oetiker Swing Coupling Features
Interchanges with Aeroquip FD40 Series, Safe Automatic Venting of Trapped Air when Disconnecting, Meets Dimensional Requirements of Mil-C-4109 for Industrial Interchangeability, to Connect, Insert Male Half into Coupling in Angled Position, Swing the Halv
Thread Sealant
Without Thread Sealant
Thread Size
1/4-18

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Product Questions & Answers (1)

Question by: Roy C on Oct 19, 2025, 6:45 PM
got an Aeroquip FD40 coupler on my air hose, will this Dixon male plug snap right in?
Answer by: Customer Support on Oct 21, 2025, 6:46 AM
For interchange, you are in good shape. This is a MIL-C-4109 industrial interchange male half and it is listed as compatible with Aeroquip FD40 Series counterparts, so it is meant to connect with that style of coupler.

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