External-Tooth Lock Washer – 0.187 in. ID × 0.375 in. OD

HyPower External-Tooth Lock Washer – 0.187 in. ID × 0.375 in. OD

HyPower external-tooth lock washer featuring a 0.187-inch inside diameter and 0.375-inch outside diameter, designed for compatible PowerPort and EnergyMate fastening and Bus Bar assemblies.

The HyPower External-Tooth Lock Washer is a replacement fastening component designed for use in compatible marine power pedestal hardware and electrical assembly applications. Featuring a 0.187-inch inside diameter (ID) and a 0.375-inch outside diameter (OD), this washer incorporates an external-tooth design intended to help resist fastener loosening when used in an appropriately specified connection. Unlike standard flat washers, external-tooth lock washers feature teeth around the outer perimeter that engage adjoining surfaces as part of the fastening arrangement. Identified in HyPower Bus Bar service materials, this component is associated with select internal hardware connections within PowerPort and EnergyMate equipment. Proper washer selection is important because flat washers, split lock washers, and external-tooth lock washers serve different fastening purposes and should not be substituted without verifying the original equipment requirements. Matching the correct washer dimensions, tooth style, material, and installation location helps maintain the intended assembly configuration.

Key Features & Benefits

• External-tooth lock washer: Features teeth around the outside perimeter for use in compatible fastening arrangements requiring this specific washer style.
• 0.187-inch inside diameter: Provides the specified interior opening dimension for matching fastener and assembly requirements.
• 0.375-inch outside diameter: Features the specified overall washer diameter for compatible connection locations.
• Fastener retention support: External teeth are designed to help resist loosening when installed as part of an appropriate fastener assembly.
• Bus Bar assembly application: Identified in HyPower Bus Bar service documentation for applicable internal electrical equipment connections.
• PowerPort and EnergyMate applications: Referenced for compatible HyPower marine power pedestal hardware assemblies.
• Replacement fastening hardware: Supports replacement of a matching missing, damaged, or unsuitable washer within the specified equipment assembly.
• Part-specific identification: HyPower part number 1045437 helps distinguish this washer from other sizes and fastening styles used throughout HyPower equipment.

Product Details

Before Ordering

Before ordering, verify the original washer's HyPower part number, 0.187-inch inside diameter, 0.375-inch outside diameter, external-tooth configuration, material, thickness, and placement within the equipment assembly. Confirm compatibility with the specified fastener and adjoining surfaces. Standard flat washers, internal-tooth lock washers, and split lock washers should not be substituted unless approved by the manufacturer. For electrical Bus Bar applications, confirm the complete connection requirements, including approved hardware, surface preparation, and manufacturer-specified tightening torque. The washer's external-tooth design alone does not establish an approved grounding, bonding, or current-carrying connection. This listing identifies the replacement washer; additional fasteners and related hardware should not be assumed included unless specifically stated. Any work involving electrical terminals or Bus Bar connections should be performed by a licensed or qualified electrician after equipment has been properly de-energized and verified safe to service.

Have questions about compatibility or availability? Contact the HyPower team for product guidance.