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

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E556) is a stainless-steel ARO-style air coupling plug with a 1/4 in body size and 1/4 in hose fitting size. It features a male MNPT thread (1/4" -18) for secure…

SKU 3G-OTH-478415

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

SPEEDAIRE
Manufacturer Part Number
30E556
Type
MNPT, Plug, Male
Thread Size
1/4" -18
Fitting Type
MNPT
Hose Fitting Size
1/4 in
Hose Fitting Gender
Male
View Full Spec Sheet

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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE Quick Connect Hose Coupling (MPN 30E556) is a stainless-steel ARO-style air coupling plug with a 1/4 in body size and 1/4 in hose fitting size. It features a male MNPT thread (1/4" -18) for secure connections in pneumatic systems.

Frequently Asked Questions

What is the SPEEDAIRE 30E556 quick connect hose coupling used for?

The SPEEDAIRE 30E556 is an ARO-style stainless-steel plug used in pneumatic systems to quickly connect and disconnect air tools, hoses, and couplers. Its 1/4 in body and MNPT thread provide a secure, leak-resistant seal in industrial compressed-air applications.

What are the specifications of the SPEEDAIRE 30E556 coupling?

The SPEEDAIRE 30E556 is a male MNPT plug with a 1/4 in body size, 1/4 in hose fitting size, and 1/4" -18 thread. It is made of stainless steel and is designed for ARO-style quick-connect air couplings. The manufacturer part number is 30E556.

Where to buy SPEEDAIRE 30E556 quick connect coupling worldwide?

3G Electric supplies the SPEEDAIRE 30E556 quick connect hose coupling to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us to order this ARO-style stainless-steel plug for your pneumatic system needs.

How to install the SPEEDAIRE 30E556 plug in a pneumatic system?

To install the SPEEDAIRE 30E556, apply thread sealant to the male MNPT threads and hand-tighten into the female port. Use a wrench for final snugging—avoid overtightening. Ensure the system is depressurized before connection. Always follow manufacturer guidelines for safe pneumatic coupling installation.

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, 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.