Value Collection ZMSCH70MD117 O-ring Dash 117 Nbr Pack 25

Product Description

The VALUE COLLECTION ZMSCH70MD117 is a Dash 117 nitrile butadiene rubber (NBR) O-ring with a 13/16-inch inner diameter, 1-inch outer diameter, and a 3/32-inch thick round cross section. Rated 70 Shore A hardness, this O-ring is engineered for sealing applications where exposure to petroleum-based fluids is a primary concern. NBR is the most widely used elastomer in fluid-system sealing due to its reliable compression set, tear resistance, and abrasion resistance. It performs across a working temperature range of -40 degrees F to 250 degrees F. Plumbers, HVAC technicians, and industrial maintenance professionals install this style of O-ring in hydraulic, pneumatic, and fuel-line assemblies.

The ZMSCH70MD117 suits residential and commercial sealing applications where petroleum product compatibility is required. Typical uses include pump housings, valve stems, threaded fittings, and fluid connectors in HVAC, plumbing, and light industrial systems. The Dash 117 designation follows standard AS568 sizing, making it a direct interchange in any assembly calling for a Dash 117 O-ring. This SKU is sold in a package quantity of 25 rings, suitable for stock replenishment or multi-point service calls. NBR compounds should not be stored in direct sunlight or near motors and other electrical equipment that may generate ozone, as ozone exposure degrades the elastomer over time.

Key Features

• Nitrile butadiene rubber construction with excellent resistance to petroleum products including oils, fuels, and hydraulic fluids
• 70 Shore A hardness rating provides a firm, reliable seal under compression in standard-pressure fittings
• Working temperature range of -40 degrees F to 250 degrees F suits most HVAC and plumbing operating conditions
• Round cross section and Dash 117 AS568-standard sizing for drop-in replacement fitment
• Black color; package quantity of 25 rings per order unit
• Metal detectable FDA-grade material designation noted (not FDA approved for direct food contact)

Compatibility

Designed as a standard Dash 117 AS568-series O-ring replacement for any valve, pump, fitting, or connector assembly that specifies a 13/16-inch ID by 1-inch OD by 3/32-inch thick NBR seal with petroleum-product compatibility.

Installation Notes

O-ring replacement is performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel following system depressurization and fluid isolation per applicable IPC or IFGC guidelines. Always clean the O-ring groove and mating surfaces before seating the new ring, and apply a compatible lubricant to ease installation without twisting or rolling the cross section. Never use petroleum-based lubricants with elastomers that are not petroleum-compatible, and verify the replacement O-ring dash number against the OEM specification before installation. Store unused rings away from ozone sources, UV light, and heat to preserve elastomer integrity.