Lincoln Electric 5200 Grease Fitting 1/8 in Thread Carbon Steel

Product Description

The Lincoln Electric 5200 is a standard grease fitting designed for routine lubrication maintenance on mechanical equipment. Commonly called a Zerk fitting, it accepts a grease gun coupler and allows pressurized grease to flow into a bearing, joint, or pivot point while the ball check valve prevents backflow and contamination. The fitting is machined from carbon steel for durability in general-purpose shop and field environments. Key dimensions include a 1/8 inch thread size, an overall length of 7/8 inch, a shank length of 19/64 inch, and a 7/16 inch hex drive for installation with a standard wrench.

This fitting is used across a wide range of lubrication points in industrial, agricultural, automotive, and construction equipment. It is a direct-drive straight-style fitting suitable for applications where the grease gun coupler has clear, unobstructed access to the fitting head. Maintenance technicians, equipment mechanics, and lubrication professionals install this type of fitting as part of scheduled preventive maintenance programs or when replacing worn or damaged Zerk fittings in the field.

Key Features

• 1/8 inch thread size for compatibility with standard lubrication port specifications
• 7/8 inch overall length suits typical recessed and flush mounting applications
• 19/64 inch shank length for secure seating in the housing bore
• 7/16 inch hex allows installation and removal with a standard open-end or box wrench
• Carbon steel construction provides strength for general-purpose lubrication service

Compatibility

Designed as an OEM-style replacement grease fitting for mechanical equipment requiring a straight Zerk-style fitting with 1/8 inch thread.

Installation Notes

Grease fittings of this type are typically installed and serviced by equipment mechanics or maintenance technicians. Relieve any load or pressure on the joint before removing an existing fitting. Use the correct thread size and thread form before installation to avoid cross-threading and housing damage. Hand-tighten first, then snug with a wrench using the 7/16 inch hex — do not overtighten, as carbon steel fittings can shear or strip the housing threads.

Technical Specifications

• Thread Size: 1/8 inch
• Overall Length (OAL): 7/8 inch
• Shank Length: 19/64 inch
• Hex Size: 7/16 inch
• Material: Carbon Steel

Standard Information

• Brand: Lincoln Electric
• Manufacturer Part Number: 5200