GRACO Compression Spring - (SKU: 166820)The GRACO 166820 SPRING, COMPRESSION is a small compression spring designed for use in GRACO equipment, likely within proportioners or related fluid handling systems. Its material is not specified in available sources, but it is intended to provide consistent compression force within the assembly, ensuring reliable operation and component alignment. Key Features: Compression Spring 166820 Designed for use with GRACO equipment (specific models not

Santoprene check balls (elastomeric material)

Used in GRACO displacement pumps for sealing and securing packing components

Replace seals as part of scheduled maintenance or at the first sign of leakage

and abrasion-resistant synthetic materials

The GRACO 129628 TRIM

Husky® 307 series pumps

Align the plug breather correctly with the designated port

Follow manufacturer guidelines for proper coupling installation

Ensure all mounting surfaces are clean and secure

Replace the grommet as part of routine maintenance or if leaks are detected

Inspect the diaphragm and related parts for wear or damage prior to installation

The GRACO 15B661 is a specialized installation tool designed to protect seals during assembly within GRACO equipment