Parker 10543-12-8 Hydraulic Hose Fitting 1000 Psi

Product Description

The PARKER 10543-12-8 is a male straight thread O-ring hydraulic hose fitting designed for use in medium-pressure hydraulic fluid systems. Constructed from steel, it provides a leak-resistant connection by sealing against a machined port face via an O-ring seated at the thread base. The fitting accepts a 1/2-inch hose and is rated for working pressures up to 1,000 psi. Thread size is 1-1/16-12 UN straight thread. Licensed hydraulic technicians and industrial maintenance professionals install this fitting during hose assembly, system repair, or component replacement on mobile and stationary hydraulic equipment.

This fitting is suited for use in industrial and mobile hydraulic circuits where a straight-thread O-ring face seal port connection is specified. The 1/2-inch hose diameter and 1-1/16-12 thread size make it a common selection for mid-flow hydraulic lines on equipment such as construction machinery, agricultural implements, and industrial power units. It is sold individually and is appropriate for new hose builds as well as maintenance replacements on existing hydraulic assemblies.

Key Features

• Male straight thread O-ring design provides a reliable, leak-resistant seal at the port face
• Steel construction for durability in demanding hydraulic environments
• 1,000 psi working pressure rating suitable for medium-pressure hydraulic circuits
• 1/2-inch hose diameter with 1-1/16-12 UN straight thread for positive fitment
• Sold as a single unit with no minimum order restriction beyond one piece

Compatibility

Designed as an OEM-style replacement or new-build fitting for hydraulic hose assemblies requiring a 1/2-inch hose connection at a 1-1/16-12 male straight thread O-ring port.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and fully de-energize the hydraulic system before disassembling any fittings or hose connections. Inspect the O-ring for damage prior to installation and replace it if any deformation or cracking is present. Tighten to port specifications per the equipment manufacturer or applicable industry standards — do not over-tighten, as this can damage the O-ring seal.