Proto J5430SPL Spline Socket 1/2 in Drive 30 Spline

Product Description

The PROTO J5430SPL is a 12-point spline socket designed for use with a 1/2 inch drive ratchet or impact tool. It accommodates 30-spline fasteners with a 15/16 inch hex size, making it a precise fit for splined shafts and fasteners commonly found in automotive, heavy equipment, and mechanical system applications. Built to meet Federal Specification GGG-W-641e and ANSI Specification B107.1, this socket is manufactured to tight tolerances for reliable torque transfer. Automotive technicians, fleet mechanics, and equipment service professionals typically reach for this socket when working on splined axle nuts, steering components, or other spline-drive hardware where standard hex sockets will not engage properly.

The J5430SPL is suited for professional service environments including automotive repair shops, fleet maintenance facilities, and industrial equipment service. The 30-spline configuration is common on domestic and import vehicle drivetrain components, as well as certain hydraulic and mechanical assemblies. This socket works with standard 1/2 inch drive hand ratchets, breaker bars, and pneumatic or electric impact wrenches. The 12-point internal geometry provides positive engagement on splined fasteners and reduces the risk of slippage under load, which matters in high-torque applications typical in drivetrain service.

Key Features

• 1/2 inch drive fits standard ratchets, breaker bars, and impact tools
• 30-spline configuration with 15/16 inch hex size for precise fastener engagement
• 12-point socket geometry for positive grip on splined fasteners
• Meets Federal Spec GGG-W-641e and ANSI Spec B107.1 for dimensional and performance compliance
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement spline socket for use with 1/2 inch drive tool systems where 30-spline, 15/16 inch hex fasteners are encountered in automotive, fleet, and industrial service applications.

Installation Notes

Installation and removal of splined fasteners should be performed by a qualified mechanic or technician familiar with the specific application. Ensure the drive tool and socket are rated for the torque requirements of the fastener before applying load. Inspect the socket for cracks or wear before each use, and do not use damaged sockets. Follow all applicable service manual torque specifications for the equipment being serviced.