Parker 10-3/4 F5OG-S Pipe Adapter 4000 Psi Straight

Product Description

The PARKER 10-3/4 F5OG-S is a straight hydraulic pipe adapter designed to connect a 7/8-14 Male Straight Thread O-Ring (ORFS-style) fitting to a 3/4-inch Female NPTF port. Built from zinc-plated steel, it carries a maximum working pressure rating of 4,000 psi, making it suitable for demanding hydraulic and fluid power applications. The O-ring face on the male end provides a reliable, leak-resistant seal without relying solely on thread engagement. Licensed hydraulic technicians, millwrights, and fluid power specialists install this type of adapter when transitioning between straight-thread and tapered pipe thread connections in hydraulic systems, industrial machinery, and mobile equipment.

This adapter is used in hydraulic plumbing applications where a male straight thread O-ring port must interface with a female NPTF tapered pipe thread port. Typical install scenarios include hydraulic manifolds, cylinders, pumps, and valve bodies found in industrial and mobile hydraulic circuits. Its straight configuration keeps the assembly compact in tight plumbing layouts. The zinc-plated steel construction provides corrosion resistance in moderately harsh shop and field environments.

Key Features

• 4,000 psi maximum working pressure for high-pressure hydraulic service
• Male Straight Thread O-Ring end provides a leak-resistant, reusable seal
• Female NPTF end creates a dry-seal tapered pipe thread connection
• Zinc-plated steel construction for corrosion resistance
• Straight fitting shape for space-efficient inline plumbing
• 1-3/8 inch hex size for standard wrench engagement

Compatibility

Designed as an OEM-style hydraulic adapter for systems requiring a Male Straight Thread O-Ring to Female NPTF straight connection at 7/8-14 male thread and 3/4-inch female thread sizes, rated to 4,000 psi working pressure.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist familiar with NPTF and straight-thread O-ring fitting procedures. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Inspect the O-ring for damage before assembly and replace it if necessary; do not reuse a damaged O-ring. Tighten to the fitting manufacturer's standard procedure for straight-thread O-ring fittings and apply appropriate thread sealant to the NPTF end per system requirements.