Eaton 04Z-204-BG Hydraulic Hose Female Pipe Rigid Fitting

Product Description

The EATON 04Z-204-BG is a female pipe rigid fitting designed for hydraulic hose assemblies. It provides a fixed, non-swivel connection between a hydraulic hose and a mating NPTF threaded port. The fitting uses a 1/4-18 NPTF thread — a dryseal thread form that creates a pressure-tight seal through thread interference, without relying on a separate sealant compound. Constructed from steel, this fitting is suited for high-pressure hydraulic circuits in industrial, agricultural, and mobile equipment applications. It is installed by hydraulic system technicians and maintenance mechanics who assemble or repair fluid power lines.

This fitting is intended for use with 4 mm (1/4 inch) hydraulic hose in systems that terminate at an NPTF female pipe port. Typical install scenarios include fluid power plumbing on mobile hydraulic equipment, machine tool circuits, and agricultural machinery where rigid, non-articulating end connections are required. The steel construction supports use in systems carrying hydraulic oil under pressure in demanding service environments.

Key Features

• NPTF dryseal thread creates a pressure-tight seal through thread engagement alone
• Female pipe rigid (non-swivel) end for fixed-position port connections
• 1/4-18 thread size for compatibility with standard 1/4 inch NPTF ports
• Steel construction for strength and durability in hydraulic service
• 3/4 inch hex for standard wrench installation

Compatibility

Designed as an OEM-style replacement rigid fitting for 4 mm hydraulic hose assemblies terminating at 1/4-18 NPTF female pipe ports in industrial and mobile hydraulic systems.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and isolate the hydraulic circuit fully before disassembling any fittings or hose ends. NPTF dryseal threads rely on proper torque and thread engagement for sealing — inspect threads for damage before assembly and do not cross-thread. Follow the equipment manufacturer's service documentation and applicable fluid power standards for assembly procedures.