Value Collection ZMSCE70154 Epdm O-ring Dash 154 Pack 15

Product Description

The VALUE COLLECTION ZMSCE70154 is a Dash 154 EPDM O-ring designed for static and dynamic sealing applications in fluid handling, plumbing, and hydraulic systems. It measures 3.75 inches inside diameter, 3.938 inches outside diameter, and 0.0937 inches thick, with a round cross-section profile and a 70 Shore A hardness rating. Made from Ethylene Propylene Diene Monomer (EPDM) compound, this O-ring maintains a reliable seal across a service temperature range of -65 degrees F to 300 degrees F. Each purchase includes 15 O-rings. This part is installed by licensed plumbers, HVAC technicians, and industrial maintenance professionals working on systems that carry hot water, steam, or phosphate ester hydraulic fluids.

This O-ring is suited for residential and commercial applications involving hot water service lines, steam distribution, and phosphate ester type hydraulic fluid systems. Its EPDM compound also provides excellent resistance to Skydrol fluids used in commercial aircraft hydraulic systems, making it a crossover choice for aerospace ground support and MRO applications. The Dash 154 designation is a standard AS568 size, enabling straightforward replacement in existing grooved fittings, valve bodies, and pump housings designed to that specification.

Key Features

• EPDM compound rated for hot water and steam service up to 300 degrees F
• Excellent resistance to Skydrol fluids and phosphate ester hydraulic fluids
• 70 Shore A hardness — hard rating suitable for moderate-pressure sealing
• Round cross-section profile for consistent groove fit and even compression
• AS568 Dash 154 standard sizing for drop-in replacement compatibility
• Pack of 15 O-rings per order, minimum order quantity of 1

Compatibility

Designed as a standard AS568 Dash 154 replacement O-ring for use in systems handling hot water, steam, and phosphate ester type hydraulic fluids. Compatible with fittings, valve bodies, and housings machined to the Dash 154 groove specification.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Before replacing any O-ring, shut off the fluid supply, relieve system pressure completely, and allow components to reach a safe handling temperature. Inspect the groove for nicks, corrosion, or debris before seating the new O-ring. Do not use petroleum-based lubricants with EPDM O-rings, as they can cause the compound to swell and degrade; use a compatible water-based or silicone lubricant approved for EPDM service.