Value Collection ZMSCQH70008 O-ring Dash 008 Nbr 70A

Product Description

The VALUE COLLECTION ZMSCQH70008 is a Dash 008 O-ring with an X-profile (quattro) cross section, manufactured from nitrile butadiene rubber (NBR) with a Shore A durometer of 70. The inside diameter measures 0.1880 inches, the outside diameter measures 0.3130 inches, and the wall thickness is 0.0625 inches. The X cross section provides four-lobed contact sealing, which reduces friction and improves stability in dynamic and static groove applications compared to a standard round cross section. Rated for service from -30 degrees F to 250 degrees F, this O-ring is suited for fluid and air sealing tasks common in HVAC, plumbing, and refrigeration assemblies. Sold in a package of 100.

This O-ring is used wherever a Dash 008 X-profile seal is required in residential and light commercial trade applications. Typical installations include valve stems, fittings, refrigerant line components, pump housings, and hydraulic or pneumatic connections that call for a small-diameter NBR seal. The 70 durometer hardness rating makes this ring appropriate for moderate-pressure sealing where some compression set resistance is needed. HVAC technicians, plumbers, and equipment service techs will find this size useful as a bench stock item for high-frequency small-seal replacements.

Key Features

• X-profile (quattro) cross section for reduced friction and improved groove retention versus round cross section
• Nitrile butadiene rubber (NBR) compound compatible with petroleum-based fluids, refrigerant oils, and water
• Shore A 70 durometer hardness rated as hard for moderate-pressure sealing duty
• Operating temperature range of -30 degrees F to 250 degrees F
• Dash 008 standard sizing for direct interchangeability with AS568 Dash 008 groove specifications
• Package of 100 units for bench stock and service van inventory

Compatibility

Designed as an OEM-style replacement for any application requiring an AS568 Dash 008 X-profile NBR O-ring with a 0.1880-inch inside diameter and 0.0625-inch cross section thickness.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or equipment service professionals. Always depressurize and de-energize the system before replacing seals, and drain or recover fluid as required by applicable codes. Lubricate the O-ring lightly with a compatible grease or fluid before seating it in the groove to prevent nicking or rolling. Do not stretch the ring beyond the minimum necessary to seat it, as overstretching reduces sealing effectiveness.