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3000/4000/5000/6000 Series MIL-C-4109 Industrial Interchange Air Quick Disconnect, Female Half, Coupling, Female NPT

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Description & Features

The Danfoss / Eaton Hansen 4000 Series Quick Disconnect Couplings Socket is engineered to meet the rigorous demands of industrial breathing air general pneumatics and fluid transfer applications. This coupling features a one-way valve type a pin latching mechanism for secure connections and a Buna-N seal material for reliable sealing.

Designed with an automatic sleeve it allows for one-hand push-to-connect operations while a protective collar helps prevent accidental snagging and disconnection. The coupling meets the dimensional requirements of MIL-C-4109 for industrial interchangeability ensuring compatibility with various male half types.

Constructed with a brass body material this coupling is rust-resistant and suitable for environments with a minimum working temperature of -40deg;C. It supports a 360deg; swivel capability eliminating hose kinking for optimal performance. With a maximum operating pressure of 500 PSI it can withstand demanding conditions.

Supplier Part Number: 4200SL

MPN: 4200SL

Specifications

Application
Industrial Breathing Air, General Pneumatics, Maintenance & Repair, Fluid Transfer
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13555
End Size 1
0.38
End Size 2
0.38
End Type 1
Push to Connect
End Type 2
NPTF
Minimum Working Temperature
-40
Safety locking Mechanism
Pin Lock
Seal Material
Buna-N
Supplier Part Number
4200SL
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1LB49, Alternate Part Number MI-05863490, Alternate Part Number MINO-00402X10024
Product Weight
0.43 lbs

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Product Questions & Answers (1)

Question by: Jimmy H on Mar 13, 2026, 7:42 AM
trying to swap out an old industrial interchange air coupler, will this female half work with different brand plugs?
Answer by: Customer Support on Mar 15, 2026, 6:12 AM
Meets the MIL-C-4109 dimensional interchange standard, so it is built to accept a range of industrial interchange male halves. It is also called out as accepting male halves from Aeroquip FD40 and FD41 (Aro 210), plus Tru-Flate and Parker (Automotive).