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

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

The SPEEDAIRE 30E551 is an Industrial Interchange Stainless Steel Quick-Connect Air Coupling Plug with a 3/8 in body size and a 3/8 in male MNPT hose fitting (3/8"-18 thread). This plug is designed for quick, secure…

SKU 3G-OTH-458533

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

SPEEDAIRE
Manufacturer Part Number
30E551
Type
MNPT, Male
Thread Size
3/8"-18
Hose Fitting Size
3/8 in
Hose Fitting Gender
Male
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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE 30E551 is an Industrial Interchange Stainless Steel Quick-Connect Air Coupling Plug with a 3/8 in body size and a 3/8 in male MNPT hose fitting (3/8"-18 thread). This plug is designed for quick, secure connections in pneumatic systems.

Frequently Asked Questions

What is the SPEEDAIRE 30E551 quick connect hose coupling used for?

The SPEEDAIRE 30E551 is an industrial interchange stainless steel quick-connect air coupling plug used in pneumatic systems to enable fast, secure connections between air tools, hoses, and compressors. It is commonly applied in manufacturing, automotive, and maintenance environments where reliable air supply is critical.

What are the specifications of the SPEEDAIRE 30E551?

The SPEEDAIRE 30E551 has a 3/8 in body size, a 3/8 in male MNPT hose fitting with 3/8"-18 threads, and a male hose fitting gender. It is an industrial interchange stainless steel quick-connect air coupling plug designed for pneumatic systems. The manufacturer part number is 30E551.

Where to buy the SPEEDAIRE 30E551 worldwide?

3G Electric supplies the SPEEDAIRE 30E551 quick connect hose coupling to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this pneumatic coupling for your application.

How to install the SPEEDAIRE 30E551 quick connect coupling?

To install the SPEEDAIRE 30E551, ensure the male MNPT threads (3/8"-18) are clean and apply thread sealant. Screw the coupling plug into the female port hand-tight, then use a wrench for a secure fit without overtightening. Always depressurize the system before installation to prevent injury.

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 stainless 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: 1/4 in Body Size, 1/2 in Hose Fitting Size, MNPT, Male (MPN 30E550). Key specifications — Brand: SPEEDAIRE; Thread Size: 1/2" -14; Hose Fitting Gender: Male.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, MNPT, Male (MPN 30E549). Key specifications — Brand: SPEEDAIRE; Thread Size: 3/8"-18; Hose Fitting Gender: Male.
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