Value Collection ZMSCH70123 O-ring Dash 123 Nitrile 70A

Product Description

The VALUE COLLECTION ZMSCH70123 is a Dash 123 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 1.188 inches inside diameter, 1.375 inches outside diameter, and 0.094 inches thick with a round cross section. Shore hardness is rated at 70, placing it in the hard range for reliable compression set resistance. The part carries SAE and MIL-Spec standards compliance. Licensed plumbers, HVAC technicians, and industrial maintenance mechanics install this type of O-ring wherever petroleum-based fluid or gas sealing is required.

This O-ring is suited for hydraulic systems, pneumatic assemblies, fuel systems, and general fluid transfer lines where contact with petroleum products is expected. It performs across a wide temperature range, from -40 degrees F to 250 degrees F, making it appropriate for both outdoor and high-cycle mechanical environments. It is sold in a package quantity of 100 units, making it practical for shop stock or field service kits. It is not FDA approved and should not be used in food-contact or potable-water applications without verification of suitability.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• 70 Shore A hardness rating for strong compression set and resilience under load
• Operating temperature range of -40 degrees F to 250 degrees F
• Round cross section, 0.094 inches thick, conforms to Dash 123 standard sizing
• Meets SAE and MIL-Spec standards
• Good tear and abrasion resistance for high-cycle sealing environments

Compatibility

Designed as a standard Dash 123 O-ring replacement for hydraulic, pneumatic, fuel, and general fluid system applications where Buna-N material and petroleum product compatibility are required. Compatible with petroleum-based fluids and lubricants; not recommended for use with ozone-generating environments or direct sunlight exposure during storage.

Installation Notes

O-rings of this type are installed by licensed plumbers, HVAC technicians, or qualified mechanics working on fluid or gas sealing assemblies. Depressurize and de-energize the system completely before removing the old seal and installing the replacement. Lightly lubricate the O-ring with a compatible fluid prior to seating to prevent tearing during installation. Store unused O-rings away from direct sunlight, motors, and electrical equipment that may generate ozone, which degrades Buna-N over time.