GRACO Washer, Back-Up - (SKU: 171885) Packing is a stainless steel

Packing is a stainless steel nut designed for use as the packing nut on the intake valve of GRACO equipment

Extended tip life—up to 2X longer due to reduced pressure

Use only GRACO-approved hoses and accessories

Used in GRACO fluid handling and spray equipment to maintain seal integrity and prevent leaks

FK material for the diaphragm

GRACO Washer, Back-Up - (SKU: 171885) Packing is a stainless steelThe GRACO 171885 washer is a back up washer, typically made from acetal, designed to provide support and load distribution in GRACO equipment assemblies. It is used to ensure proper fit, prevent fastener damage, and maintain assembly integrity, especially in high pressure fluid regulator systems. Key Features: Back up washer Acetal (as referenced in similar GRACO regulator documentation) Compatible with GRACO high pressure fluid regulators and related