GRACO Collar Piston - (SKU: 557191) Its primary function is to

Its primary function is to control the spray pattern and flow rate of materials such as coatings

waste oil collection

Designed for GRACO Grease Jockey automatic lubrication systems

15 ft-lb for bracket bolts

Used in heavy-duty earth-moving machines and industrial equipment requiring automatic lubrication solutions

GRACO Collar Piston - (SKU: 557191) Its primary function is toThe GRACO 557191 Collar Piston is a small, precision engineered component designed for use within GRACO industrial equipment, particularly in lubrication and fluid handling systems. Its material is not specified in available sources, but it is intended to function as a critical internal part, likely aiding in the movement or sealing of pistons within pumps or spray systems. Key Features: Collar Piston Designed for use with GRACO industrial equipment;