Value Collection ZMSCH70119 O-ring Dash 119 Nbr Pack 100

Product Description

The VALUE COLLECTION ZMSCH70119 is a Dash 119 Buna-N (nitrile butadiene rubber) O-ring with a round cross section, designed for static and dynamic sealing applications in fluid and pneumatic systems. It measures 0.924 inches inside diameter and 1.125 inches outside diameter with a 0.0937-inch thickness. Rated at 70 Shore A hardness, it operates across a temperature range of -40 degrees F to 250 degrees F. Buna-N is the most widely used O-ring elastomer in the trade, chosen for its excellent resistance to petroleum-based products, strong compression set performance, and solid tear and abrasion resistance. Licensed plumbers, HVAC technicians, and mechanical contractors install these as standard sealing components in refrigerant, hydraulic, fuel, and compressed-air circuits.

This O-ring is well suited for residential and commercial plumbing, HVAC refrigerant piping, hydraulic fittings, fuel system connections, and general industrial sealing applications where petroleum-product compatibility is required. The Dash 119 sizing is a standard AS568 dimension used across a broad range of fittings, valves, and connectors. It is compatible with petroleum-based fluids and oils, making it a common choice in equipment service and maintenance scenarios. Note that this material should not be stored in direct sunlight or near motors and other electrical equipment that may generate ozone, as ozone exposure degrades nitrile rubber over time.

Key Features

• Buna-N (nitrile butadiene rubber) construction with excellent petroleum-product resistance
• Dash 119 standard AS568 sizing: 0.924 inches ID x 1.125 inches OD x 0.0937 inches thick
• 70 Shore A hardness rating for reliable compression set and sealing force
• Operating temperature range: -40 degrees F to 250 degrees F
• Round cross section for consistent seating in standard O-ring grooves
• Meets SAE and MIL-Spec standards

Compatibility

Compatible with petroleum-based products and fluids. Designed as a standard Dash 119 O-ring replacement suitable for use in valves, fittings, and fluid system components that specify Buna-N or nitrile rubber seals in this AS568 size class.

Installation Notes

Plumbers, HVAC technicians, and hydraulic system technicians typically install O-rings of this type. Always relieve system pressure and isolate the fluid supply before disassembling any fitting or valve housing to replace the seal. Inspect the mating groove for burrs, scoring, or contamination before installing the new O-ring. Avoid exposing the installed or stored O-ring to direct sunlight, ozone sources, or strong solvents incompatible with nitrile rubber.