Value Collection ZMSCQH70112 Nbr O-ring Dash 112 Pack 100

Product Description

The VALUE COLLECTION ZMSCQH70112 is a Dash 112 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with an X-profile cross section, also known as a quad-ring or Quattro profile. It measures 0.500 inches inside diameter, 0.688 inches outside diameter, and 0.0937 inches thick. The 70 Shore A durometer rating places this ring in the hard hardness range, providing good resistance to compression set under dynamic or static sealing conditions. Rated for continuous service from -30 degrees F to 250 degrees F, it suits a wide range of fluid-sealing applications in plumbing, HVAC, hydraulic, and pneumatic systems. This SKU ships in a package quantity of 100 rings.

NBR O-rings in the Dash 112 size are commonly used as static or dynamic seals in valves, fittings, pumps, and fluid-system components across residential and light commercial trade work. The X cross section delivers four sealing lips instead of the two offered by a standard round cross section, which reduces spiral twist in dynamic applications and improves low-pressure sealing. Typical installers include plumbers, HVAC technicians, and hydraulic system technicians working on fluid handling equipment where petroleum-based fluids, water, or mild chemical media are present.

Key Features

• X-profile (Quattro) cross section reduces spiral twist and improves low-pressure sealing versus standard round O-rings
• Nitrile Butadiene Rubber construction offers compatibility with petroleum-based fluids, water, and many common refrigerants
• 70 Shore A durometer (hard rating) resists compression set in both static and dynamic sealing applications
• Operating temperature range of -30 degrees F to 250 degrees F suits most HVAC and plumbing service environments
• Dash 112 standard sizing ensures dimensional interchangeability with other Dash 112 seals
• Sold in a 100-piece package suitable for stocking service vans and shop inventory

Compatibility

Designed as a standard Dash 112 replacement O-ring for valves, fittings, pumps, and fluid-system components requiring an X-profile NBR seal in petroleum-based fluid, water, or mild chemical service.

Installation Notes

Power down or depressurize the system and isolate the fluid supply before removing any fitting or valve containing this seal. Inspect the groove for nicks, burrs, or debris before installing the new ring, and apply a thin film of compatible lubricant to seat the O-ring without rolling or twisting it. Do not overstretch the ring during installation. For potable water or food-service applications, note that this ring is not FDA approved and an appropriate food-grade material should be selected instead.