Value Collection ZMSCH70105 O-ring Dash 105 Nitrile Butadiene Rubber

Product Description

The VALUE COLLECTION ZMSCH70105 is a Dash 105 O-ring made from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in sealing applications across HVAC, plumbing, and fluid system work. It measures 0.156 inches inside diameter, 0.344 inches outside diameter, and 0.094 inches thick with a round cross section. Hardness is rated at 70 Shore A, placing it in the hard range for positive sealing under compression. This O-ring is sold in packages of 100, making it a practical shelf stock item for service vans and shop inventory.

This O-ring is suited for use in systems that handle petroleum-based fluids, including refrigeration oil circuits, hydraulic lines, fuel handling, and general plumbing connections. Its Buna-N compound delivers reliable compression set resistance and strong tear and abrasion performance in both static and dynamic sealing applications. It operates across a temperature range of -40 degrees F to 250 degrees F, covering most residential and light commercial service conditions. Licensed HVAC technicians, plumbers, and mechanical service professionals commonly stock Dash 105 O-rings for valve, fitting, and manifold service work.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• Dash 105 standard sizing: 0.156 inches ID, 0.344 inches OD, 0.094 inches thick
• 70 Shore A hardness for positive sealing compression performance
• Operating temperature range of -40 degrees F to 250 degrees F
• Round cross section for consistent groove seating
• Meets SAE and MIL-Spec standards

Compatibility

Compatible with petroleum-based products and fluids. Designed as a standard Dash 105 O-ring replacement for any application requiring this AS568 dash size in a Buna-N elastomer. Store away from direct sunlight and ozone-generating electrical equipment to preserve elastomer integrity.

Installation Notes

O-rings should be installed by a qualified technician following the requirements of the applicable system service procedure. Depressurize and isolate the system before removing any fitting or valve that retains an O-ring. Lubricate the O-ring with a compatible fluid or grease prior to seating to prevent tearing during assembly. Do not overstretch during installation, and verify the groove dimensions match the Dash 105 cross section before use.