Value Collection ZMSCH70024 O-ring Dash 024 Nbr 100 Pack

Product Description

The VALUE COLLECTION ZMSCH70024 is a Dash 024 nitrile butadiene rubber (NBR) O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and fluid system work. It measures 1.125 inches inside diameter, 1.25 inches outside diameter, and 0.0625 inches thick with a round cross section. Rated at 70 Shore A hardness, this O-ring operates across a temperature range of -40 degrees F to 250 degrees F, making it suitable for a wide range of service conditions involving petroleum-based fluids. Licensed tradespeople and maintenance technicians install this part as a sealing element in valves, fittings, pumps, and fluid couplings. Each package contains 100 O-rings.

This O-ring is suited for residential and commercial applications involving petroleum products, hydraulic fluids, and general-purpose fluid sealing. Common installation scenarios include valve stem seals, pipe union seals, pump shaft seals, and fitting connections in HVAC refrigerant and hydronic systems, plumbing assemblies, and light industrial fluid circuits. NBR is the most widely used O-ring elastomer in the trades, offering reliable performance in environments where fuel oils, greases, and hydraulic fluids are present. The Dash 024 designation follows the AS568 standard sizing series, making cross-referencing and sourcing straightforward for technicians.

Key Features

• Nitrile butadiene rubber (Buna-N) construction with excellent resistance to petroleum products
• 70 Shore A hardness rating provides strong compression set resistance
• Round cross section, 0.0625 inches thick, conforms to Dash 024 AS568 sizing
• Operating range of -40 degrees F to 250 degrees F supports a wide range of service temperatures
• Good tear and abrasion resistance for dynamic sealing use cases
• Packaged in quantities of 100 for shop stock and service van inventory

Compatibility

Designed as an OEM-style replacement or service stock O-ring for any application requiring a Dash 024 NBR O-ring with a 1.125-inch inside diameter and 1.25-inch outside diameter. Compatible with petroleum products per supplier data. Meets SAE and MIL-Spec standards. Not FDA approved; not recommended for food-grade or potable-water applications without verification.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical technicians depending on the system type. Always depressurize and drain the system before replacing O-rings; residual pressure or fluid can cause injury and prevent proper seating. Apply a light coat of compatible lubricant to the O-ring before installation to reduce the risk of tearing during assembly. Do not store unused O-rings in direct sunlight or near motors and other electrical equipment that may generate ozone, as this degrades NBR material over time.