Value Collection ZMSCH70030 Nitrile O-ring Dash 030 Pack 100

Product Description

The VALUE COLLECTION ZMSCH70030 is a Dash 030 Nitrile Butadiene Rubber (Buna-N) O-ring with a round cross section, designed for static and dynamic sealing applications across plumbing, HVAC, and fluid-handling systems. It measures 1.625 inches inside diameter, 1.750 inches outside diameter, and 0.0625 inches thick. With a Shore A hardness of 70, this elastomer delivers firm compression set and solid resistance to petroleum-based fluids, hydraulic oils, and fuels. Rated for service from -40 degrees F to 250 degrees F, it holds its seal across a wide operating range. This is the most widely used O-ring elastomer in trade applications.

This O-ring is suited for residential and commercial service work involving petroleum products, hydraulic circuits, fuel lines, and general fluid sealing. Plumbers, HVAC technicians, and equipment service techs commonly use Dash 030 Buna-N O-rings when servicing valves, fittings, pumps, and compressor connections. The pack quantity of 100 units makes it practical for service vehicles and shop stock. Compatible with petroleum-based media. Not recommended for exposure to ozone-generating equipment or prolonged direct sunlight during storage.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — excellent resistance to petroleum products, hydraulic fluids, and fuels
• Dash 030 sizing: 1.625 inches ID, 1.750 inches OD, 0.0625 inches thick
• Shore A hardness of 70 — rated Hard for reliable compression set
• Operating temperature range: -40 degrees F to 250 degrees F
• Round cross section for consistent sealing contact
• Meets SAE and MIL-Spec standards
• Pack of 100 units for shop stock or field inventory

Compatibility

Compatible with petroleum products and petroleum-based hydraulic fluids. Designed as a standard Dash 030 Buna-N O-ring replacement for valves, fittings, pumps, and fluid-system components requiring this cross-section size.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical service professionals. Shut off all fluid supply and relieve system pressure completely before removing any fitting or valve seat. Inspect the O-ring groove for scoring or debris before seating the new ring. Do not store unused O-rings near motors, ozone-generating equipment, or in direct sunlight, as ozone and UV exposure degrade Buna-N over time.