GRACO Washer, Lock - (SKU: 100128) but it is intended to

but it is intended to provide a reliable seal between mating surfaces within GRACO pumps or related equipment

Reverse-A-Clean (RAC) X design allows for easy clog clearing by reversing the tip

use appropriate tools to avoid cross-threading or over-tightening

primarily in drywall mud and finishing tool applications

Polyethylene (PE) and leather packing/seals

GRACO Washer, Lock - (SKU: 100128) but it is intended toThe GRACO 100128 Washer, Lock is a small hardware component designed to secure and stabilize connections within GRACO spray equipment. Its material is not specified in available sources, but similar GRACO lock washers are typically made from durable metals such as steel or stainless steel for corrosion resistance and longevity. The part is intended to prevent loosening of fasteners and maintain the integrity of fluid connections in GRACO spray