Value Collection ZMSCH90201 Nbr O-ring Dash 201

Product Description

The VALUE COLLECTION ZMSCH90201 is a Dash 201 nitrile butadiene rubber (NBR) O-ring rated for a temperature range of -40 to 250 degrees F. It measures 0.188 inches inside diameter, 0.438 inches outside diameter, and 0.125 inches thick with a round cross-section. At 90 durometer (extra hard), this O-ring delivers firm sealing force with excellent resistance to petroleum-based fluids, making it a standard choice for plumbing, HVAC, and hydraulic service work where fuel oils, lubricants, and refrigeration oils are present. Licensed trades and experienced service techs keep this size on hand for routine valve, fitting, and pump seal work.

This O-ring is suited for residential and light commercial applications involving petroleum product contact. Typical install scenarios include valve body rebuilds, pump shaft seals, hydraulic fittings, and fluid-line connections in HVAC and plumbing systems. Its Dash 201 sizing is a widely recognized standard dimension, making it a drop-in fit across many OEM and aftermarket components that call for this cross-section. It meets SAE and MIL-Spec standards. The package quantity is 50 pieces per order.

Key Features

• Nitrile butadiene rubber construction with excellent resistance to petroleum products
• 90 durometer hardness (extra hard) for firm compression sealing
• Temperature range: -40 to 250 degrees F
• Round cross-section, 0.125 inches thick, Dash 201 standard sizing
• Meets SAE and MIL-Spec standards
• Store away from direct sunlight and ozone-generating equipment such as motors or electrical devices

Compatibility

Designed as a standard Dash 201 NBR O-ring replacement compatible with petroleum-based fluid systems including hydraulic, lubrication, and fuel oil applications in HVAC, plumbing, and light industrial equipment.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Shut off and depressurize the system completely before removing any fittings or valve bodies. Inspect the mating groove for damage or debris before seating the new O-ring. Avoid twisting or rolling the O-ring during installation to prevent premature sealing failure.