Parker 16-1/2 F5OG-S Pipe Adapter 5000 Psi Nptf

Product Description

The PARKER 16-1/2 F5OG-S is a straight pipe adapter designed to connect a 1-5/16-12 male straight thread O-ring (MSTO) port to a 1/2 inch female NPTF port in hydraulic and industrial fluid power systems. Constructed from zinc-plated steel, it carries a maximum working pressure rating of 5,000 psi, making it suitable for high-pressure hydraulic lines. The straight configuration keeps the connection in-line without angular offset. It weighs 0.3 pounds and measures 1 inch in overall length. Licensed plumbers, hydraulic system technicians, and industrial maintenance professionals typically install this fitting during assembly or repair of fluid power circuits.

This adapter is used in industrial and mobile hydraulic systems where a straight-thread O-ring boss port must transition to a female NPTF pipe thread connection. Common install scenarios include hydraulic manifolds, pump ports, and valve bodies in both stationary and mobile equipment. The 1/2 inch female NPTF thread accepts standard tapered pipe fittings, while the 1-5/16-12 male thread end seals via an O-ring face seat, reducing leak points under pressure cycling.

Key Features

• Maximum working pressure of 5,000 psi for high-pressure hydraulic service
• Male straight thread O-ring x female NPTF connection type minimizes leak paths
• Zinc-plated steel construction provides corrosion resistance in industrial environments
• Straight fitting shape maintains in-line routing without angular deviation
• 1-5/16-12 male thread conforms to SAE 090156 standard
• Compact 1 inch overall length for use in tight plumbing layouts

Compatibility

Designed as an OEM-style replacement or new-installation adapter for hydraulic and industrial fluid power systems requiring a male straight thread O-ring boss to female NPTF pipe thread transition at 1/2 inch female thread size and 1-5/16-12 male thread size, conforming to SAE 090156.

Installation Notes

Installation should be performed by a qualified hydraulic technician or licensed pipefitter. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Inspect the O-ring for damage before installation and ensure the boss port seating surface is clean and free of burrs. Tighten to the fitting manufacturer's standard procedure for straight-thread O-ring boss fittings; do not overtighten the NPTF thread end, as tapered threads can crack cast ports if over-torqued.