GRACO Packing, U Cup Seal Poly 1/4, 1/2, 1 - (SKU: 551190)The GRACO 551190 is a U cup seal made from polyurethane, designed to provide reliable sealing in hydraulic or pneumatic systems within GRACO equipment. Its primary function is to prevent fluid leakage and maintain system integrity. Key Features: U cup seal 1 4, 1 2, 1 (inch sizes) Polyurethane GRACO equipment (general spare part) High quality sealing performance Durable polyurethane construction Suitable for general maintenance and replacement

Ensure proper alignment of NPT and ORB connections

Remove the old cover carefully to avoid damaging internal components

Used in GRACO lubrication and fluid-handling systems for reliable fluid transfer in industrial

and apply a wide range of fluids and viscous materials in commercial and industrial applications

and other heavy-duty machinery requiring robust and reliable power

Replace mixers as part of routine maintenance or when mixing quality declines

Label/Brand Component

Supports high-capacity hose reels for long-range dispense

Keep spare repair kits on hand for critical equipment

General metal finishing and coating applications using AirPro Automatic HVLP spray guns

Avoid using solvents that may damage aluminum or nylon components during cleaning

high-quality materials