GRACO Piston 22.312 5/16 UHMW HD - (SKU: 01/0057-1J/88)The GRACO 01 0057 1J 88 is a piston component made from ultra high molecular weight polyethylene (UHMW), designed for heavy duty use within GRACO equipment. It ensures smooth and reliable operation in fluid handling systems. Key Features: Piston 22. 312 inches (length), 5 16 inch (diameter) UHMW (Ultra High Molecular Weight Polyethylene), Heavy Duty Designed for GRACO equipment; specific models not listed Heavy duty construction for durability UHMW

Hand-tighten before final torque to avoid cross-threading

Viton material for chemical resistance and durability

some listings specify 38–50 gpm depending on configuration[1][2][4]

Keep air supply clean and dry to prevent contamination

Fewer parts for easier maintenance and increased reliability

reliable pumping of liquids and slurries

Used in GRACO pumps and fluid handling systems where chemical and heat resistance are required for reliable sealing and long service life

Available in various materials (aluminum

For best results

It is intended for maintenance and repair of these pumps

The kit is constructed with stainless steel (SS) components and is intended to ensure reliable operation and longevity of GRACO equipment in demanding industrial environments

Non-genuine parts may compromise safety and reliability