Value Collection ZMSCH3X32 Nbr O-ring 32mm Id 38mm Od

Product Description

The VALUE COLLECTION ZMSCH3X32 is a round cross-section O-ring made from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in sealing applications. It measures 32 mm inside diameter, 38 mm outside diameter, and 3 mm in thickness, with a hardness rating of 70 Shore A. Buna-N compound delivers excellent resistance to petroleum-based fluids, strong compression set performance, and solid tear and abrasion resistance. This O-ring is installed by plumbers, hydraulic technicians, and mechanical maintenance professionals wherever a reliable static or dynamic seal is required in fluid and gas systems.

This O-ring is suited for sealing applications involving petroleum products, hydraulic oils, fuels, and general industrial fluids. It performs across a wide temperature range of -40 degrees F to 250 degrees F, making it appropriate for both indoor mechanical assemblies and equipment exposed to temperature variation. Common installation scenarios include hydraulic fittings, pneumatic cylinders, pipe flanges, pumps, and valve bodies in industrial, commercial plumbing, and HVAC service environments. This part is not FDA approved and should not be specified for food-contact or potable-water applications without verifying local code requirements.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — the most widely used O-ring elastomer in trade and industrial sealing
• 70 Shore A hardness rating provides firm sealing force with controlled deformation under compression
• Operating temperature range of -40 degrees F to 250 degrees F suits a broad range of service environments
• Excellent resistance to petroleum products, hydraulic fluids, and fuels
• Round cross-section profile for reliable groove fit and consistent sealing surface contact
• Meets SAE and MIL-Spec standards

Compatibility

Compatible with systems and assemblies handling petroleum products and petroleum-based hydraulic fluids. Designed for use in grooves sized to accept a 32 mm ID, 38 mm OD, 3 mm cross-section round O-ring per SAE and MIL-Spec dimensional standards. Not compatible with ozone-generating environments, direct sunlight exposure during storage, or applications requiring FDA-compliant materials.

Installation Notes

Installation is typically performed by licensed plumbers, hydraulic technicians, or qualified mechanical maintenance personnel. Always depressurize and de-energize the system before removing or installing O-rings. Inspect the seating groove for burrs, scoring, or contamination before seating the new O-ring. Do not store Buna-N O-rings near electric motors, welding equipment, or in direct sunlight, as ozone and UV exposure degrade nitrile rubber over time.