Value Collection ZMSCV70350 Viton O-ring Dash 350

Product Description

The VALUE COLLECTION ZMSCV70350 is a Dash 350 Viton (fluoroelastomer) O-ring with a 4.625-inch inside diameter, 5-inch outside diameter, and a cross-section thickness of 0.1875 inches. The round cross-section profile seats reliably in standard AN and dash-size grooves. Rated for continuous service from -15 degrees F to 400 degrees F, this O-ring handles elevated temperatures and aggressive fluid exposure that would degrade standard nitrile or EPDM seals. Hardness is rated at 70 Shore A, which falls in the hard range and supports low compression set over repeated thermal cycles. Each package contains 2 O-rings.

Fluoroelastomer O-rings in the Dash 350 size are used in hydraulic systems, fuel systems, pneumatic fittings, and fluid-handling equipment where petroleum-based fluids, oils, and high operating temperatures are present. Typical applications include industrial machinery maintenance, HVAC refrigeration service fittings, plumbing shutoff assemblies, and pool and spa equipment pump seals. Licensed technicians and millwrights use this size when servicing larger-bore flanges, valve bonnets, and pipe unions that call for a Dash 350 cross-reference.

Key Features

• Fluoroelastomer (Viton) compound offers wide chemical compatibility with petroleum products, fuels, and hydraulic fluids
• Operating temperature range of -15 degrees F to 400 degrees F suits high-heat service environments
• 70 Shore A hardness provides low compression set and dimensional stability under sustained clamping load
• Round cross-section conforms to standard Dash 350 groove dimensions for drop-in replacement
• Low gas permeability makes this O-ring suitable for vacuum service applications
• Package quantity of 2 supports immediate installation plus one spare

Compatibility

Designed for any application calling for a Dash 350 fluoroelastomer O-ring with a 4.625-inch inside diameter and 0.1875-inch cross-section thickness. Compatible with petroleum products and systems requiring resistance to high temperatures. Not FDA approved; not intended for food-contact or pharmaceutical service.

Installation Notes

Fluoroelastomer O-rings should be installed by a qualified technician familiar with the pressure and fluid ratings of the host system. Depressurize and de-energize all lines before removing the old seal, and clean the groove thoroughly to remove debris or old sealant before seating the new ring. Avoid using petroleum-based lubricants unless confirmed compatible with the system fluid; a light coat of the system fluid itself is often sufficient. Follow applicable ASME, IFGC, or equipment manufacturer torque and assembly procedures for the fitting or flange being serviced.