Value Collection ZMSCVB75328 O-ring Dash 328 Viton

Product Description

The VALUE COLLECTION ZMSCVB75328 is a Dash 328 Viton fluoroelastomer O-ring used to create static or dynamic seals in fluid and gas systems. It measures 1.875 inches inside diameter, 2.25 inches outside diameter, and 0.1875 inches thick with a round cross-section. The fluoroelastomer compound delivers a durometer hardness rating of 75, placing it in the hard range for reliable compression set resistance. The operating temperature range spans -15 to 400 degrees F, making it suitable for high-heat environments where standard nitrile or EPDM compounds would degrade. HVAC technicians, plumbers, and industrial maintenance professionals are the primary installers of this seal type.

This O-ring is suited for applications involving petroleum-based fluids, hydraulic oils, fuels, and process chemicals where elevated temperatures are a factor. The fluoroelastomer material provides low gas permeability and good vacuum service performance, making it appropriate for refrigerant-side sealing, fuel system repairs, and chemical process equipment. Its Dash 328 designation follows standard AS568 sizing, so it drops into any gland machined to that specification. It is sold in packages of 25 units, making it practical for shop stocking or multi-unit service calls.

Key Features

• Fluoroelastomer (Viton-type) compound for broad chemical compatibility with petroleum products and process fluids
• Operating range of -15 to 400 degrees F supports high-temperature service environments
• 75 durometer hardness rating reduces compression set over extended service life
• Low gas permeability and good vacuum service suitability
• Round cross-section conforms to AS568 Dash 328 gland dimensions
• Package quantity of 25 units supports shop stock and bulk service work

Compatibility

Designed as an AS568 standard Dash 328 O-ring replacement for any gland or port machined to the 1.875-inch ID, 2.25-inch OD, 0.1875-inch cross-section specification. Compatible with petroleum products, hydraulic fluids, fuels, and a wide spectrum of industrial chemicals per manufacturer data.

Installation Notes

Power down or depressurize the system fully before removing the existing seal. Clean the gland groove and mating surfaces before installing the replacement O-ring to avoid contamination-related leaks. Apply a thin film of compatible lubricant to the O-ring before seating to prevent tearing during assembly. Follow applicable system pressure ratings and torque specifications defined by the equipment manufacturer.