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1000/400/500 Series MIL-C-4109 Industrial Interchange Air Quick Disconnect, Female Half, -06 Coupling, 3/8-18 Female NPT

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Description & Features

The 1000/400/500 Series MIL-C-4109 Industrial Interchange Air Quick Disconnect Female Half -06 Coupling 3/8-18 Female NPT is designed to meet the demanding requirements of industrial and construction applications. This product features a protective collar that mitigates accidental disconnections and a manual retract latch design ensuring swift and straightforward hose line connections. The standard body material is zinc-plated steel providing durability and resistance to corrosion.

Engineered by Danfoss Power Solutions (II LLC Aeroquip) to ensure high flow with minimal pressure drop it supports top-notch performance of pneumatic tools. Additionally its 360deg; swivel capability prevents hose kinking facilitating better hose management. The standard seal material is Neoprene offering reliable sealing against fluids.

With a sleeve lock safety mechanism and compatibility with general pneumatics industrial plants and fluid transfer this coupling is a versatile and essential component. It also adheres to MIL-C-4109 specifications for industrial interchangeability.

MPN: C1LX32

Supplier Part Number: 420

Specifications

A
2.35
Application
General Pneumatics, Construction, Industrial Plants, Fluid transfer
B
1.13
Coupling Size
-06
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 2
0.38
End Type 1
Push to Connect
End Type 2
NPTF
Minimum Working Temperature
-40
Safety locking Mechanism
Sleeve lock
Seal Material
Buna-N
Supplier Part Number
420
Thread 1
3/8-18
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1LX32, Alternate Part Number MI-06737435, Alternate Part Number MINO-00015X16353, Alternate Part Number MINO-00402F31930
Product Weight
0.31 lbs

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Product Questions & Answers (3)

Question by: Todd E on Feb 13, 2026, 1:42 PM
i’ve got a 3/8-18 female npt air line, is this the right female quick disconnect end for it?
Answer by: Customer Support on Feb 15, 2026, 6:39 AM
For a 3/8-18 female NPT port, this coupling matches that thread and it is the female half (socket) in an industrial interchange style that meets MIL-C-4109 dimensional requirements. It’s a -06 size with an NPTF threaded end and a push-to-connect style on the coupling side.
Question by: Ross W on May 20, 2025, 7:42 AM
What kind of equipment is this quick disconnect typically used with?
Answer by: Customer Support on May 22, 2025, 7:40 AM
Common uses include general pneumatics, construction, industrial plants, and fluid transfer applications.
Question by: Floyd H on Dec 7, 2025, 4:43 PM
Does this coupling work with standard industrial interchange fittings, or is it proprietary to a specific brand?
Answer by: Customer Support on Dec 9, 2025, 6:07 AM
MIL-C-4109 is a military-spec dimensional standard that covers industrial interchange quick disconnects, so this female half will mate with any male plug built to the same spec, regardless of brand. That includes most common 1000, 400, and 500 series industrial interchange plugs you'd find in a typical plant or shop environment. The 3/8-18 female NPT port threads onto standard pipe fittings, so getting it integrated into an existing air line setup is usually straightforward.