Parker 10656-4-3 Female Jic 37 Swivel Fitting 6000 Psi

Product Description

The PARKER 10656-4-3 is a female JIC 37-degree, 45-degree dual flare swivel straight fitting designed for high-pressure hydraulic hose assemblies. Built from steel with a threaded connection type, it accepts 3/16-inch inside diameter hose (Size 4) and is rated to 6,000 psi working pressure. The 7/16-20 thread size and straight body orientation make it a standard choice for routing hydraulic lines in compact or fixed-angle installations. At 1.78 inches overall length with a 9/16-inch hex, it installs easily with common hand tools. Hydraulic technicians and industrial maintenance professionals use this fitting where a reliable, leak-free JIC connection is required in high-pressure fluid power circuits.

This fitting is suited for hydraulic hose assemblies operating in industrial, mobile, and heavy equipment environments where JIC 37-degree flare connections are standard. Parker specifies this fitting for use with the following hose series: 510C, 518C, 540N, 548N, 560, 590, and D6R. Its swivel design allows the hose end to rotate during installation, reducing assembly torque and hose twist in tight routing situations. It is appropriate for both new assembly builds and replacement work on existing hydraulic circuits.

Key Features

• Female JIC 37-degree, 45-degree dual flare swivel straight configuration for secure high-pressure connections
• 6,000 psi pressure rating suitable for demanding hydraulic circuit applications
• Steel construction provides durability in industrial and mobile equipment environments
• 7/16-20 thread size with straight body for direct, in-line hose routing
• Swivel design minimizes hose twist during assembly
• Compact 1.78-inch overall length fits space-constrained installations

Compatibility

Designed for use with Parker hose series 510C, 518C, 540N, 548N, 560, 590, and D6R. Accepts 3/16-inch (Size 4) inside diameter hydraulic hose with a 7/16-20 JIC threaded end connection.

Installation Notes

Installation should be performed by a qualified hydraulic technician familiar with JIC flare fitting assembly procedures. Depressurize and isolate the hydraulic circuit fully before disconnecting or installing any fittings. Hand-tighten the fitting first to confirm thread engagement, then torque to the fitting manufacturer specification using a properly sized wrench on the hex flats. Do not use thread sealant on JIC 37-degree flare connections, as the metal-to-metal flare seat provides the pressure seal.