Value Collection ZMSCH70FDA021 Buna-n O-ring Dash 021 Fda Pack 25

Product Description

The VALUE COLLECTION ZMSCH70FDA021 is a Dash 021 O-ring manufactured from white Buna-N (Nitrile Butadiene Rubber), one of the most widely used elastomers in fluid sealing applications. It measures 0.9260 inches inside diameter, 1.0620 inches outside diameter, and 0.0625 inches thick with a round cross section. Hardness is rated at 70 Shore A, placing it in the hard range for reliable compression set performance. The material is FDA approved and rated for use from -40 degrees F to 250 degrees F, making it suitable for a broad range of service conditions involving petroleum-based fluids and lubricants. This O-ring is sold in a package quantity of 25.

This O-ring is used across HVAC, plumbing, hydraulic, and pneumatic systems wherever a standard Dash 021 face seal or groove seal is required. Buna-N compound delivers excellent resistance to petroleum products, hydraulic oils, and fuels, making it a go-to choice for plumbing technicians, HVAC service professionals, and maintenance mechanics working on fluid handling assemblies. The FDA-approved white compound also suits food-grade and sanitary piping applications where incidental contact with consumables is a concern.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound — the most widely used O-ring elastomer for petroleum product compatibility
• FDA approved white compound suitable for food-grade and sanitary applications
• 70 Shore A hardness for reliable compression set and tear and abrasion resistance
• Operating temperature range of -40 degrees F to 250 degrees F
• Round cross section, Dash 021 standard sizing: 0.9260 inches ID x 1.0620 inches OD x 0.0625 inches thick
• Meets SAE and MIL-Spec standards
• Package quantity of 25 units per order

Compatibility

Compatible with petroleum products, hydraulic oils, fuels, and lubricants. Designed as a standard Dash 021 replacement O-ring for use in face seal, boss, or groove applications across HVAC, plumbing, hydraulic, and pneumatic equipment. Do not expose to ozone-generating sources such as electric motors or direct sunlight during storage.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or mechanical service professional. Shut off system pressure and drain fluid from the line before replacing any O-ring seal. Lightly lubricate the O-ring with a compatible fluid prior to installation to prevent twisting or tearing during seating. Avoid stretching the O-ring beyond what is necessary to seat it in the groove.