Parker 1JS43-12-12 Female Seal-lok Swivel Fitting 3/4 in

Product Description

The PARKER 1JS43-12-12 is a female Seal-Lok swivel fitting designed for hydraulic hose assemblies. It features a straight, threaded connection with a 3/4-inch thread size and accepts hoses with a 0.75-inch inside diameter (hose size 12). Constructed from steel, this fitting provides a leak-resistant face seal connection in high-pressure hydraulic systems. At 3.31 inches overall length, it installs in-line between a hydraulic hose end and a mating Seal-Lok port. The swivel design allows the hose to be positioned without twisting during assembly. Hydraulic technicians and mobile equipment mechanics are the primary installers of this fitting type.

This fitting is suited for hydraulic plumbing on industrial machinery, mobile equipment, and fluid power systems that require reliable face-seal connections at 3/4-inch ported locations. It is compatible with a broad range of Parker hose series commonly used in medium- and high-pressure hydraulic circuits in both stationary and mobile applications. The straight configuration makes it appropriate for direct in-line connections where no angular offset is needed.

Key Features

• Female Seal-Lok swivel interface provides a leak-resistant face seal at the port connection
• Straight shape for direct in-line hose-to-port routing
• Steel construction for durability in demanding hydraulic environments
• 0.75-inch (hose size 12) inside diameter matches common mid-range hydraulic hose sizing
• 3/4-inch thread size for direct fitment to standard Seal-Lok ported components
• Meets ISO 12151-1 standards for hydraulic fluid power hose fittings

Compatibility

Designed for use with Parker 187 TC, 187 ST, 302, 304, 387 TC, 387 ST, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487 TC, 487 ST, 722 TC, 722 ST, 787 TC, 787 ST, 797 TC, 797 ST, and 881 hose series.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and isolate the hydraulic circuit completely before disconnecting or assembling any hose fittings. Inspect the face seal surface and O-ring for damage before assembly; do not install a fitting with a damaged sealing surface. Tighten to the fitting manufacturer's standard Seal-Lok assembly procedure using appropriate flats-from-finger-tight torque guidelines for the thread size, and verify the circuit for leaks before returning the system to service.