Lincoln Electric 632004 Milton Style Air Coupler 1/4 in

Product Description

The LINCOLN ELECTRIC 632004 is a Milton-style air coupler assembly designed for use in compressed air distribution systems. It features a 1/4 inch inner diameter and a 1/4 inch NPT female thread connection, making it a standard fit for a wide range of pneumatic tool and equipment hookups. Rated to a maximum operating pressure of 250 psi with a maximum air flow of 45 SCFM at 100 psi, this coupler is built to handle the demands of shop and service environments. At 1.75 inches overall length and 1.125 inches in diameter, it is a compact, direct-replacement component for 63 Series Lincoln Industrial lubrication and air systems.

This coupler assembly is suited for use in automotive service bays, industrial maintenance facilities, and fleet shops where 63 Series Lincoln Industrial equipment is in service. It is typically installed at the air inlet connection point of lubrication dispensing equipment or pneumatic tool circuits. The Milton-style interface is one of the most widely used coupler standards in North American shop environments, allowing compatibility with a broad range of quick-connect pneumatic accessories. Technicians replacing worn or damaged couplers on 63 Series systems will find this a direct OEM-style swap.

Key Features

• Milton-style coupler interface for broad pneumatic accessory compatibility
• Maximum operating pressure of 250 psi for demanding shop applications
• Maximum air flow of 45 SCFM at 100 psi
• 1/4 inch NPT female thread for standard air line connections
• Compact form factor: 1.75 inches overall length, 1.125 inches diameter
• Designed specifically for Lincoln Industrial 63 Series equipment

Compatibility

Designed as an OEM-style replacement coupler assembly for Lincoln Industrial 63 Series lubrication and compressed air equipment.

Installation Notes

Installation is typically performed by a qualified pneumatic or lubrication equipment technician. Before servicing, depressurize the air line fully and disconnect the air supply to the equipment. Use appropriate thread sealant on the NPT connection as required by the application and follow applicable shop safety procedures. Do not exceed the rated maximum operating pressure of 250 psi.

Technical Specifications

• Maximum Operating Pressure: 250 psi
• Maximum Air Flow: 45 SCFM at 100 psi
• Overall Length: 1.75 inches
• Diameter: 1.125 inches
• Thread Size: 1/4 inch NPT Female
• Inner Diameter: 1/4 inch

Standard Information

• Brand: LINCOLN ELECTRIC
• Manufacturer Part Number: 632004