Parker 12 HP5ON-S Hex Socket Plug 1-1/16-12 Male Thread

Product Description

The PARKER 12 HP5ON-S is a hex socket plug designed to cap and seal hydraulic or fluid-power lines using a male straight thread O-ring connection. It threads into a female port at 1-1/16-12 UN/UNF-2A and compresses an O-ring against the port face to create a leak-free static seal rated to 6,000 psi maximum working pressure. Constructed from zinc-plated steel, the plug resists corrosion in industrial and mobile hydraulic environments. The 9/16-inch hex drive allows installation with a standard wrench or socket. Licensed plumbers, hydraulic technicians, and maintenance mechanics install this fitting when capping unused ports on manifolds, valves, cylinders, and hydraulic power units.

This plug is suited for industrial hydraulic systems, mobile equipment, and fluid-power plumbing where a clean port cap with positive O-ring sealing is required. The male straight thread O-ring style conforms to SAE standard 090109B, making it a common choice for capping SAE O-ring boss (ORB) ports found on pumps, actuators, control valves, and related components in both stationary and mobile applications.

Key Features

• Male straight thread O-ring connection provides a static, leak-free port seal up to 6,000 psi
• 1-1/16-12 UN/UNF-2A thread size for SAE O-ring boss port applications
• Zinc-plated steel construction for corrosion resistance in industrial environments
• 9/16-inch hex socket drive for installation with standard hand tools
• Overall length of 0.75 inches keeps the plug compact in tight port locations
• Conforms to SAE standard 090109B

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic and fluid-power systems using SAE O-ring boss ports with a 1-1/16-12 male straight thread O-ring connection.

Installation Notes

A licensed hydraulic technician or qualified mechanic should install this plug. Before installation, depressurize and de-energize the hydraulic circuit completely and verify fluid has been relieved from the port. Ensure the mating female port and sealing surface are clean and free of damage before threading in the plug. Do not over-tighten; hand-snug plus a controlled turn with a wrench to seat the O-ring is the standard practice for straight thread O-ring fittings.