Value Collection ZMSCH90003 O-ring Dash 003 Nbr 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90003 is a Dash 003 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. With a 0.0625-inch inside diameter, 0.1880-inch outside diameter, and 0.0625-inch cross-section thickness, this O-ring carries a 90 durometer hardness rating, placing it in the extra-hard category. It is rated for continuous service from -40 degrees F to 250 degrees F and delivers excellent resistance to petroleum-based fluids. Licensed trades and maintenance professionals use this size for instrument fittings, small-bore hydraulic connectors, and precision fluid control components. Sold in packs of 100.

This O-ring is suited for use in residential and light commercial HVAC systems, plumbing assemblies, refrigeration equipment, hydraulic circuits, and industrial fluid systems where contact with petroleum products is expected. The Buna-N compound provides reliable compression set resistance and strong tear and abrasion resistance under cyclic loading. This size is commonly found in small-diameter fittings, solenoid valve bodies, and sensor port seals across a wide range of service environments. Store away from direct sunlight, ozone sources, and electrical equipment that may generate ozone.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — excellent petroleum product resistance
• 90 durometer hardness (extra hard) for high-pressure and tight-tolerance applications
• Temperature range: -40 degrees F to 250 degrees F
• Round cross-section profile, Dash 003 standard sizing
• Meets SAE and MIL-Spec standards
• Pack of 100 with a minimum order quantity of 1

Compatibility

Compatible with petroleum products and petroleum-based hydraulic fluids. Designed as a standard Dash 003 O-ring replacement for use in any application requiring a 0.0625-inch ID Buna-N seal per SAE and MIL-Spec dimensional standards.

Installation Notes

O-ring installation should be performed by a qualified technician following system-specific service procedures. Shut down and de-energize or depressurize the system fully before replacing any O-ring seal. Lightly lubricate the O-ring with a compatible fluid or grease before seating to prevent tearing during assembly. Do not roll or twist the O-ring into the groove; seat it uniformly to ensure proper compression and a leak-free seal.