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SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 1/4 in Hose Fitting Size - Industrial Interchange Steel Quick-Connect Air Coupling Plugs
SPEEDAIREIndustrial Interchange Steel Quick-Connect Air Coupling Plugs

SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 1/4 in Hose Fitting Size

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E666) is an industrial interchange steel quick-connect air coupling plug with a 3/8 in body size and a 1/4 in FNPT female hose fitting. It features a 1/4" -18 thread…

SKU 3G-OTH-457078

Brand
SPEEDAIRE
Item
Quick Connect Hose Coupling: 3/8 in Body Size, 1/4 in Hose Fitting Size
Category
Industrial Interchange Steel Quick-Connect Air Coupling Plugs
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Technical Specifications

SPEEDAIRE
Manufacturer Part Number
30E666
Type
FNPT, Female
Thread Size
1/4" -18
Hose Fitting Size
1/4 in
Hose Fitting Gender
Female
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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E666) is an industrial interchange steel quick-connect air coupling plug with a 3/8 in body size and a 1/4 in FNPT female hose fitting. It features a 1/4" -18 thread size and is designed for pneumatic applications requiring a secure, female-threaded connection.

Frequently Asked Questions

What is the SPEEDAIRE 30E666 quick connect hose coupling used for?

The SPEEDAIRE 30E666 is an industrial interchange steel quick-connect air coupling plug used in pneumatic systems to provide a secure, female-threaded connection for air tools and hoses. It suits applications requiring a 1/4 in FNPT fitting and 3/8 in body size.

What are the specifications of the SPEEDAIRE 30E666 coupling?

The SPEEDAIRE 30E666 has a 3/8 in body size, 1/4 in hose fitting size, and 1/4" -18 thread size. It features an FNPT female connection and is made of steel for industrial interchange air coupling applications. The manufacturer part number is 30E666.

Where to buy the SPEEDAIRE 30E666 coupling worldwide?

3G Electric supplies the SPEEDAIRE 30E666 quick connect hose coupling to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct industrial interchange steel air coupling plug for your pneumatic system.

How to install the SPEEDAIRE 30E666 quick connect coupling?

To install the SPEEDAIRE 30E666, ensure the air line is depressurized. Apply thread sealant to the 1/4" -18 male pipe thread, then hand-tighten the FNPT female coupling onto the fitting. Use a wrench for a secure seal, avoiding overtightening to prevent damage.

Used in

Common applications for SPEEDAIRE
Manufacturing assembly lines — SPEEDAIRE compressed air filters (e.g., 4ZL49) for particulate removal in pneumatic tool supply
Air compressor maintenance — SPEEDAIRE Furnas to Condor P/S Kit (33MH82) for pressure switch conversion on reciprocating compressors
Pneumatic control systems — SPEEDAIRE check valves (810RC7) to prevent backflow in instrument air lines
Air tool repair — SPEEDAIRE internal gears (45P349) and O-rings (42VA60) for rebuilding impact wrenches and grinders
Heavy-duty industrial air preparation — SPEEDAIRE heavy-duty filters (4ZL12) with metal bowls for high-flow, high-pressure applications up to 250 psi
Air motor servicing — SPEEDAIRE repair kits (22XJ91) for maintaining pneumatic gearmotors in conveyor systems

SPEEDAIRE Products

3G Electric supplies SPEEDAIRE industrial interchange steel quick-connect air coupling plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, FNPT, Female (MPN 30E702). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 1/4 in Hose Fitting Size, FNPT, Female (MPN 30E664). Key specifications — Brand: SPEEDAIRE; Thread Size: 1/4" -18; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, FNPT, Female (MPN 30E665). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, FNPT, Female (MPN 30E665). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Hose Fitting Gender: Female.
SPEEDAIRE Quick Connect Hose Coupling: 1/2 in Body Size, 3/8 in Hose Fitting Size, Male Hose Barb (MPN 30E672). Key specifications — Brand: SPEEDAIRE; Hose Fitting Gender: Male.
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SPEEDAIRE Quick Connect Hose Coupling: 1/2 in Body Size, 3/8 in Hose Fitting Size, Male Hose Barb (MPN 30E672). Key specifications — Brand: SPEEDAIRE; Hose Fitting Gender: Male.
SPEEDAIRE Quick Connect Hose Coupling: 1/2 in Body Size, 1/2 in Hose Fitting Size, FNPT, Female (MPN 30E668). Key specifications — Brand: SPEEDAIRE; Thread Size: 1/2" -14; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 1/2 in Body Size, 1/2 in Hose Fitting Size, FNPT, Female (MPN 30E668). Key specifications — Brand: SPEEDAIRE; Thread Size: 1/2" -14; Hose Fitting Gender: Female.
SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, Sleeve, MNPT (MPN 30E704). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Coupling Locking Type: Sleeve; Hose Fitting Gender: Male.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, Sleeve, MNPT (MPN 30E704). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Coupling Locking Type: Sleeve; Hose Fitting Gender: Male.
SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, MNPT, Male (MPN 30E706). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Hose Fitting Gender: Male.
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