Parker 8-1/2 F5OG-S Pipe Adapter 5000 Psi Zinc-plated Steel

Product Description

The PARKER 8-1/2 F5OG-S is a straight hydraulic pipe adapter designed to connect male straight thread O-ring (STOR) ports to female NPTF (National Pipe Taper Fuel) threads. The male end is a 3/4-16 straight thread with an O-ring sealing face, and the female end accepts 1/2-inch NPTF pipe thread. Rated to 5,000 psi maximum working pressure, this adapter is built from zinc-plated steel for corrosion resistance in industrial and fluid power applications. Plumbers, pipefitters, and hydraulic system technicians install this fitting when transitioning between SAE straight thread O-ring ports and tapered pipe thread connections.

This adapter is suited for hydraulic lines, fluid power manifolds, and industrial piping systems where a leak-free transition between straight thread O-ring and NPTF port styles is required. It is commonly used in stationary and mobile hydraulic equipment, machine tool plumbing, and industrial process lines operating at high pressure. The straight body profile keeps routing compact in tight panel or manifold installations.

Key Features

• 5,000 psi maximum working pressure rating for demanding hydraulic service
• Male straight thread O-ring x female NPTF connection type for reliable leak-free sealing
• Zinc-plated steel construction for corrosion resistance in industrial environments
• Straight fitting shape for compact, in-line plumbing layouts
• 1-1/8 inch hex size allows standard wrench engagement for easy installation and removal
• 1-1/2 inch overall length suits confined manifold and panel mounting spaces

Compatibility

Designed as an OEM-style straight adapter for hydraulic and fluid power systems requiring a male 3/4-16 straight thread O-ring port to female 1/2-inch NPTF pipe thread transition at working pressures up to 5,000 psi.

Installation Notes

Installation should be performed by a qualified pipefitter or hydraulic technician. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Apply thread sealant compatible with the system fluid to the NPTF female threads; the O-ring on the male straight thread end provides the primary seal at that port and does not require tape or sealant. Tighten to the fitting manufacturer's recommended flats-from-finger-tight specification using a properly sized wrench on the 1-1/8 inch hex.