Value Collection ZMSCE70377 Epdm O-ring Dash 377

Product Description

The VALUE COLLECTION ZMSCE70377 is an EPDM O-ring with a round cross section, sized to Dash 377 specifications. It measures 10 inches inside diameter, 10-3/8 inches outside diameter, and 3/16 inches thick. Made from Ethylene Propylene Diene Monomer (EPDM) with a Shore A hardness rating of 70 (Hard), this O-ring is suited for sealing applications involving hot water, steam, and phosphate ester hydraulic fluids. It also provides excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems. Plumbers, HVAC technicians, and maintenance mechanics install this type of O-ring as a static or dynamic seal in piping, flanges, and hydraulic assemblies.

This O-ring is intended for use in systems handling hot water, steam, and phosphate ester type hydraulic fluids. Its EPDM compound performs reliably across a wide temperature range, from -65 degrees F to 300 degrees F, making it appropriate for demanding industrial and commercial plumbing or hydraulic service environments. Typical install scenarios include pipe flange sealing, pump housings, valve bodies, and hydraulic system fittings where fluid compatibility with phosphate ester or steam service is required. Each package contains 4 O-rings.

Key Features

• EPDM compound with excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems
• Rated for hot water and steam service up to 300 degrees F
• Compatible with phosphate ester type hydraulic fluids
• Shore A hardness of 70 (Hard) for reliable sealing under pressure
• Round cross section for consistent groove fit in standard Dash 377 gland dimensions
• Sold in packages of 4

Compatibility

Compatible materials include hot water, steam, and phosphate ester hydraulic fluids. Designed as an OEM-style replacement or maintenance O-ring for systems requiring a Dash 377 EPDM seal.

Installation Notes

Installation should be performed by a qualified plumber, hydraulic systems technician, or maintenance mechanic. Depressurize and drain the system completely before replacing any O-ring. Inspect the mating groove for damage, burrs, or contamination prior to installation. Avoid twisting or stretching the O-ring during seating to prevent premature seal failure.