Value Collection ZMSCH90332 O-ring Dash 332 Nbr 90A 25-pack

Product Description

The VALUE COLLECTION ZMSCH90332 is a Dash 332 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 2.375 inches inside diameter, 2.75 inches outside diameter, and 0.1875 inches thick, with a round cross-section. Rated at 90 durometer (extra hard), this O-ring delivers excellent compression set resistance and strong tear and abrasion resistance. The temperature range spans -40 to 250 degrees F, making it suitable for a broad range of hydraulic, pneumatic, and fluid system applications. Each order ships as a package of 25 pieces.

This O-ring is suited for use in hydraulic systems, pneumatic assemblies, plumbing connections, and mechanical seals where petroleum-based fluids are present. Buna-N compound is the standard choice for oil and fuel service across industrial, HVAC, and plumbing trades. The 90 durometer hardness rating is appropriate for higher-pressure applications where extrusion resistance is a priority. Installers working on fluid control valves, pump housings, fittings, and compressor assemblies will find this size and durometer combination commonly required in field service work.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound — excellent resistance to petroleum products and hydraulic fluids
• 90 durometer extra-hard rating for improved extrusion resistance under elevated pressure
• Operating temperature range: -40 to 250 degrees F
• Round cross-section, Dash 332 standard sizing
• Meets SAE and MIL-Spec standards
• Packaged in quantities of 25 for field and shop use

Compatibility

Compatible with petroleum-based products and hydraulic fluids. Designed as a standard Dash 332 replacement O-ring for use in systems where Buna-N compound and 90 durometer hardness are specified. Not FDA approved; not recommended for food-contact applications. Should not be stored in direct sunlight or near motors and electrical equipment that generate ozone.

Installation Notes

O-ring replacement is typically performed by licensed plumbers, HVAC technicians, hydraulic system mechanics, or qualified industrial maintenance personnel. Always depressurize and isolate the system before removing the old O-ring and inspect the groove for wear, scoring, or contamination prior to installation. Use a compatible lubricant rated for Buna-N and the fluid media present; avoid petroleum-incompatible greases. Follow applicable system manufacturer torque specifications and relevant code requirements such as those in the IPC or IFGC when reinstalling fittings or valves.