Tapco 1066371 Cartridge Spindle Lock 35mm 2-pole

Product Description

The TAPCO 1066371 is a cartridge-style spindle lock designed for use in electrical distribution and metering applications. This two-pole unit features a 35mm knockout configuration and a 98mm threaded interface, providing a secure mechanical connection for metering socket installations. It is typically installed by licensed electricians working on residential or light commercial meter bases and service entrance equipment. The compact cartridge design supports reliable locking engagement and is suited for environments where tamper resistance and service continuity are required.

The 1066371 is applied in metering socket assemblies where a spindle lock cartridge is required to secure the meter jaw contacts and maintain a stable electrical connection. The 35mm knockout fits standard meter base cutout dimensions, and the 98mm thread length accommodates typical socket housing depths. This part is appropriate for new installations and direct replacement service work on compatible meter bases.

Key Features

• Two-pole cartridge configuration for dual-contact metering applications
• 35mm knockout diameter matches standard meter base cutout sizing
• 98mm threaded interface provides secure engagement depth
• Spindle lock design resists loosening under vibration and thermal cycling
• Compact cartridge form factor simplifies installation and replacement

Compatibility

Designed as an OEM-style replacement cartridge spindle lock for electrical meter bases requiring a 35mm knockout, two-pole configuration with a 98mm threaded interface.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements and local utility standards. De-energize and verify the absence of voltage at the meter base before handling any internal components. Ensure the knockout cutout is clean and free of burrs before seating the cartridge. Do not overtighten the threaded interface, as this may damage the socket housing or distort the jaw alignment.