Value Collection ZMSCH90134 O-ring Dash 134 Buna-n

Product Description

The VALUE COLLECTION ZMSCH90134 is a Dash 134 O-ring made from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 1.875 inches inside diameter, 2.063 inches outside diameter, and 0.094 inches thick with a round cross-section. Rated at 90 durometer (extra hard), this O-ring delivers excellent resistance to petroleum-based fluids, strong compression set performance, and solid tear and abrasion resistance. It handles temperatures from -40 to 250 degrees F, making it suitable for a broad range of service conditions. Licensed plumbers, HVAC technicians, and maintenance mechanics commonly specify Buna-N O-rings for hydraulic, pneumatic, and refrigeration line sealing tasks.

This O-ring is suited for residential and commercial applications where petroleum-based fluid contact is expected. Typical install scenarios include pump seals, valve bodies, fittings, and hydraulic cylinder end caps. The Dash 134 designation follows the AS568 standard sizing system, allowing straightforward cross-reference and replacement in existing assemblies. Compatible materials include petroleum oils, fuels, hydraulic fluids, and similar non-polar media. This part is not FDA approved and should not be exposed to ozone-generating equipment or stored in direct sunlight.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction for excellent petroleum-fluid resistance
• 90 durometer extra-hard rating for demanding compression and abrasion applications
• Operating temperature range: -40 to 250 degrees F
• Round cross-section per Dash 134 AS568 sizing standard
• Meets SAE and MIL-Spec standards
• Black color; package quantity of 50 per order

Compatibility

Designed as a Dash 134 standard O-ring replacement compatible with petroleum products and non-polar fluid service in hydraulic, pneumatic, and general mechanical assemblies requiring a 1.875-inch ID seal.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified maintenance mechanic. Always depressurize and isolate the system before removing or installing O-rings. Lightly lubricate the O-ring with a compatible petroleum-based or silicone grease before seating to reduce the risk of tearing during assembly. Do not store unused O-rings near motors, ozone-generating equipment, or in direct sunlight, as ozone exposure degrades Buna-N elastomers.