GRACO Copper Washer 1.0 ID Friction - (SKU: 556523)The GRACO 556523 is a copper washer designed for use as a friction component within GRACO lubrication equipment. Its primary function is to provide a reliable seal and reduce wear between mating surfaces in high pressure environments. Key Features: Washer 1. 0 ID (Internal Diameter) Copper Compatible with GRACO high pressure lubricators (e. g., HP50, HP60) Durable copper construction for reliable sealing and wear resistance Designed for use in high

Used in commercial and industrial fluid handling systems where branching or connecting fluid lines is required

Use appropriate thread sealant as recommended in the manual

Ensure the pump is depressurized and disconnected from power before replacing the piston kit

Replace gland packing as part of routine maintenance to prevent equipment failure

Regularly check for wear or leaks

DISPLACEMENT is an original replacement part designed for use in GRACO hydraulic equipment

5 psi (15 bar)

Regularly inspect shield and paint components for wear or damage

Supports 20L (5 gallon) fluid containers

and maintains equipment authenticity

high-quality materials

but it is intended to securely connect hoses or conduits within GRACO equipment