GRACO Nut Retainer - (SKU: 171601) wrench on the slider piston

wrench on the slider piston to prevent turning while tightening the coupling nut to 75-80 ft-lb (102-108 N•m)

Using the genuine GRACO 15M056 cover ensures proper fit

Using genuine GRACO adapters ensures proper fit

Santoprene backup diaphragms

GRACO Nut Retainer - (SKU: 171601) wrench on the slider pistonThe GRACO 171601 Nut Retainer is a small, precision engineered component designed to secure and retain nuts within GRACO equipment, ensuring reliable fastening and preventing loosening during operation. Material is not specified, but it is typically made from durable metal or alloy for longevity and strength. Its intended use is to maintain the integrity of assemblies in GRACO industrial and paint sprayer systems. Key Features: Nut Retainer 171601