Value Collection ZMSCH70314 O-ring Dash 314 Nbr 0.75 in Id

Product Description

The VALUE COLLECTION ZMSCH70314 is a Dash 314 O-ring made from Nitrile Butadiene Rubber (NBR), also known as Buna-N, the most widely used elastomer in fluid sealing applications. It features a 0.75 inch inside diameter, 1.125 inch outside diameter, and a 0.1875 inch round cross section with a durometer hardness of 70. This O-ring is engineered to seal against petroleum-based fluids in hydraulic, pneumatic, and plumbing systems. It is installed by HVAC technicians, plumbers, and pipefitters wherever a reliable, oil-resistant static or dynamic seal is required.

This O-ring is suited for use in residential and commercial applications involving petroleum-based fluids, hydraulic oils, fuels, and many common lubricants. Typical install scenarios include valve bodies, pump housings, fittings, and fluid connectors in HVAC equipment, plumbing assemblies, and general mechanical systems. The Dash 314 designation is a standard AN/MS sizing reference, making this a direct dimensional match for any application calling out Dash 314 geometry. It is sold in packages of 50 units.

Key Features

• Buna-N (NBR) elastomer provides excellent resistance to petroleum products, hydraulic oils, and fuels
• 70 durometer hardness rating delivers a balance of flexibility and compression resistance
• Round cross section with 0.1875 inch thickness ensures consistent seating in standard O-ring grooves
• Operating temperature range of -40 degrees F to 250 degrees F suits most HVAC and plumbing service conditions
• Excellent compression set, tear resistance, and abrasion resistance for long service life
• Meets SAE and MIL-Spec standards for dimensional and material compliance

Compatibility

Designed for use in any application requiring a standard Dash 314 O-ring with NBR material. Compatible with petroleum products and hydraulic fluids. Not recommended for use with ozone, direct sunlight exposure, or equipment that generates ozone such as motors and other electrical devices.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or pipefitters as part of valve, pump, or fitting service. Always depressurize and de-energize the system before replacing O-rings. Lightly lubricate the O-ring with a compatible fluid prior to installation to prevent tearing during seating. Avoid rolling or twisting the O-ring during installation, as this can compromise the seal.