Value Collection ZMSCH90114 O-ring Dash 114 Buna-n 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90114 is a Dash 114 Buna-N (Nitrile Butadiene Rubber) O-ring used to create fluid-tight seals in hydraulic, pneumatic, and plumbing assemblies. It measures 0.625 inches inside diameter, 0.813 inches outside diameter, and 0.094 inches thick, with a round cross section and a 90 durometer hardness rating classified as extra hard. Rated for use from -40 degrees F to 250 degrees F, this O-ring is designed for demanding service in systems handling petroleum-based fluids. Licensed plumbers, HVAC technicians, and industrial service professionals install this part as a sealing component in valves, fittings, pumps, and similar equipment.

This O-ring is suited for residential and commercial applications wherever a Dash 114 sealing element is required. Common install scenarios include valve stem seals, pump shaft seals, and pipe fitting connections in HVAC refrigerant circuits, hydronic systems, fuel lines, and general hydraulic assemblies. Its excellent compression set resistance and tear and abrasion resistance make it a reliable choice in high-cycle or high-pressure environments. Buna-N is the most widely used O-ring elastomer in trade service and is compatible with petroleum products and most mineral-based lubricants.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — most widely used O-ring elastomer in trade applications
• 90 durometer extra-hard rating for high-pressure sealing performance
• Operating temperature range of -40 degrees F to 250 degrees F
• Excellent resistance to petroleum products, compression set, tear, and abrasion
• Round cross section, black color, meets SAE and MIL-Spec standards
• Sold in a package quantity of 100 with a minimum order quantity of 1

Compatibility

Compatible with petroleum products and petroleum-based fluids. Designed as a Dash 114 standard O-ring replacement for valves, fittings, pumps, and sealing applications requiring a Buna-N elastomer. Not FDA approved; not recommended for use with ozone-generating environments or prolonged direct sunlight exposure.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified industrial mechanics. Shut off and depressurize the system before removing or installing any O-ring seal. Lubricate the O-ring with a compatible lubricant — use only petroleum-compatible grease with Buna-N material. Avoid storing unused O-rings near motors, electrical equipment, or in direct sunlight, as ozone and UV exposure can degrade the elastomer.