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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 1/2 in Hose Fitting Size - ARO Stainless Steel Quick-Connect Air Coupling Plugs
SPEEDAIREARO Stainless Steel Quick-Connect Air Coupling Plugs

SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 1/2 in Hose Fitting Size

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E558) is a 1/4 in body size, ARO stainless steel quick-connect air coupling plug with a 1/2 in male MNPT hose fitting and a 1/2"-14 thread size.

SKU 3G-OTH-478418

Brand
SPEEDAIRE
Item
Quick Connect Hose Coupling: 1/4 in Body Size, 1/2 in Hose Fitting Size
Category
ARO Stainless Steel Quick-Connect Air Coupling Plugs
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Technical Specifications

SPEEDAIRE
Manufacturer Part Number
30E558
Type
MNPT
Thread Size
1/2" -14
Fitting Type
MNPT
Hose Fitting Size
1/2 in
Hose Fitting Gender
Male
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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E558) is a 1/4 in body size, ARO stainless steel quick-connect air coupling plug with a 1/2 in male MNPT hose fitting and a 1/2"-14 thread size.

Frequently Asked Questions

What is the SPEEDAIRE 30E558 quick connect hose coupling used for?

The SPEEDAIRE 30E558 is an ARO-style stainless steel quick-connect air coupling plug used to connect pneumatic tools and hoses in industrial compressed air systems. Its 1/4 in body size and 1/2 in MNPT fitting suit medium-duty air lines in manufacturing, assembly, and maintenance applications.

What are the specifications of the SPEEDAIRE 30E558 coupling?

The SPEEDAIRE 30E558 has a 1/4 in body size, 1/2 in hose fitting size, and a 1/2"-14 thread size. It features a male MNPT fitting type and is made of stainless steel. The manufacturer part number is 30E558, and it is designed as an ARO-style quick-connect air coupling plug.

Where to buy SPEEDAIRE 30E558 quick connect hose coupling worldwide?

3G Electric supplies the SPEEDAIRE 30E558 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 ARO-style stainless steel air coupling plug for your pneumatic system.

How to install the SPEEDAIRE 30E558 coupling on a hose?

To install the SPEEDAIRE 30E558, apply thread sealant to the male MNPT threads and hand-tighten into a compatible female coupler or hose fitting. Use a wrench to snug the connection without over-tightening. Ensure the air supply is off and depressurized before installation to avoid 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 aro 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, 1/4 in Hose Fitting Size, MNPT, Plug, Male (MPN 30E556). Key specifications — Thread Size: 1/4" -18; Fitting Type: MNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Male.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 1/4 in Hose Fitting Size, FNPT (MPN 30E553). Key specifications — Thread Size: 1/4" -18; Fitting Type: FNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, FNPT (MPN 30E554). Key specifications — Thread Size: 3/8"-18; Fitting Type: FNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Female.
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SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, FNPT (MPN 30E554). Key specifications — Thread Size: 3/8"-18; Fitting Type: FNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Female.
SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, MNPT (MPN 30E559). Key specifications — Thread Size: 3/8"-18; Fitting Type: MNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Male.
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SPEEDAIRE Quick Connect Hose Coupling: 3/8 in Body Size, 3/8 in Hose Fitting Size, MNPT (MPN 30E559). Key specifications — Thread Size: 3/8"-18; Fitting Type: MNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Male.
SPEEDAIRE Quick Connect Hose Coupling: 1/4 in Body Size, 3/8 in Hose Fitting Size, MNPT (MPN 30E557). Key specifications — Thread Size: 3/8"-18; Fitting Type: MNPT; Brand: SPEEDAIRE; 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 (MPN 30E557). Key specifications — Thread Size: 3/8"-18; Fitting Type: MNPT; Brand: SPEEDAIRE; Hose Fitting Gender: Male.