Value Collection ZMSCH90013 O-ring Dash 013 Nbr 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90013 is a Dash 013 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 0.438 inches inside diameter, 0.5630 inches outside diameter, and 0.0625 inches thick, with a round cross section. Rated at 90 durometer (extra hard), it delivers excellent compression set, tear resistance, and abrasion resistance. The temperature range of -40 to 250 degrees F makes it suitable for a wide range of operating environments. Meets SAE and MIL-Spec standards. This package contains 100 pieces.

This O-ring is used wherever a petroleum-compatible static or dynamic seal is required. Common applications include HVAC refrigerant fittings, hydraulic connections, pneumatic assemblies, plumbing valves, and pool and spa equipment. The Buna-N compound offers excellent resistance to petroleum-based fluids, oils, and fuels, making it a standard choice for technicians working on mechanical sealing points in residential and commercial systems. It is not recommended for exposure to ozone, direct sunlight storage, or environments near motors and other electrical equipment that generate ozone.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — excellent petroleum product resistance
• 90 durometer extra-hard rating for high-compression sealing applications
• Operating temperature range: -40 to 250 degrees F
• Meets SAE and MIL-Spec standards
• Round cross section, Dash 013 sizing — 0.438 inches ID x 0.5630 inches OD x 0.0625 inches thick
• Sold in a pack of 100 pieces

Compatibility

Compatible with petroleum products and petroleum-based fluids. Designed as an OEM-style replacement or service seal for any application requiring a Dash 013 Buna-N O-ring conforming to SAE and MIL-Spec dimensional standards.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or mechanical service professionals. Always depressurize and shut off fluid supply to the system before removing or installing O-rings. Lightly lubricate the O-ring with a compatible fluid or grease prior to seating to prevent tearing during assembly. Do not store unused O-rings in direct sunlight or near ozone-generating equipment such as electric motors.