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The PARKER 16-3/4 F5OG-S is a straight pipe adapter designed for high-pressure hydraulic and industrial fluid systems. It connects a 1-5/16-12 male straight thread O-ring port to a 3/4-inch female NPTF port in a single inline fitting. Constructed from zinc-plated steel, it delivers a rated maximum working pressure of 4,000 psi. The male end uses an O-ring face or boss seal to eliminate thread-form leakage, while the female NPTF end creates a pressure-tight mechanical seal without additional sealant. Licensed plumbers, hydraulic technicians, and industrial pipefitters install this fitting in fluid power and process piping applications.
This adapter is suited for industrial fluid power lines, hydraulic manifolds, and process piping where a transition from a straight-thread O-ring boss port to a female NPTF connection is required. It is appropriate for both stationary and mobile hydraulic equipment operating within the rated pressure range. The straight fitting shape keeps plumbing compact in tight panel or manifold configurations. It meets SAE standard 090156 and carries the UNSPSC code 40175305.
Designed as an OEM-style replacement or service fitting for industrial and hydraulic piping systems requiring a male 1-5/16-12 straight thread O-ring to female 3/4-inch NPTF adapter.
Installation should be performed by a qualified hydraulic technician or licensed pipefitter familiar with high-pressure fluid systems. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Inspect the O-ring for damage before assembly and ensure the boss port seat is clean and free of burrs. Do not exceed the rated maximum working pressure of 4,000 psi in service.
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