Value Collection ZMSCH70140 O-ring Dash 140 Nbr 50 Pack

Product Description

The VALUE COLLECTION ZMSCH70140 is a Dash 140 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 2.25 inches inside diameter, 2.438 inches outside diameter, and 0.0937 inches thick, with a round cross section. Hardness is rated at 70 Shore A, placing it in the hard range for reliable compression set performance. This O-ring is sold in a package quantity of 50. Plumbers, hydraulic system technicians, and mechanical tradespeople install these in fluid and pneumatic systems requiring dependable petroleum-product resistance.

The ZMSCH70140 is suited for residential and commercial applications involving petroleum-based fluids, oils, fuels, and hydraulic media. Its Buna-N compound delivers excellent tear and abrasion resistance across a broad service temperature range of -40 degrees F to 250 degrees F. Typical installation scenarios include pump assemblies, valve bodies, fittings, and fluid connectors where a standard Dash 140 groove dimension is specified. These O-rings conform to SAE and MIL-Spec standards, making them appropriate for both commercial trade and light industrial maintenance work.

Key Features

• Buna-N (Nitrile Butadiene Rubber) material provides excellent resistance to petroleum products, oils, and fuels
• Dash 140 designation with 2.25 inches ID and 2.438 inches OD for standardized groove fitment
• 70 Shore A hardness rating for reliable compression set and sealing force
• Rated for service from -40 degrees F to 250 degrees F
• Round cross section at 0.0937 inches thickness for consistent sealing contact
• Conforms to SAE and MIL-Spec standards

Compatibility

Designed as a standard Dash 140 O-ring replacement compatible with any system or component machined to accept a Dash 140 groove profile and compatible with petroleum-based media, oils, fuels, and hydraulic fluids.

Installation Notes

Installation is typically performed by licensed plumbers, hydraulic technicians, or mechanical service professionals. Depressurize and drain the system completely before replacing any O-ring. Lightly lubricate the O-ring with a compatible fluid prior to seating to prevent tearing during installation. Do not store unused O-rings in direct sunlight or near motors and electrical equipment that may generate ozone, as ozone exposure degrades Buna-N compound over time.