Acorn Engineering 0401-127-001 O-ring Dash 127 Nbr

Product Description

The ACORN ENGINEERING 0401-127-001 is a Dash 127 O-ring sized at 1.437 inches inner diameter by 1.625 inches outer diameter with a 0.094-inch cross-section thickness. Constructed from Nitrile Butadiene Rubber (NBR), this O-ring delivers reliable resistance to oils, fuels, and hydraulic fluids commonly encountered in HVAC, plumbing, and mechanical equipment applications. The round cross-section design seats consistently in standard grooves, providing a leak-free static or dynamic seal. Plumbers, HVAC technicians, and equipment service professionals install this part during routine maintenance or component replacement on pumps, valves, and fittings.

This O-ring fits standard Dash 127 groove dimensions and is suited for use in residential and light commercial mechanical systems. Typical applications include pump housings, valve bodies, threaded fittings, and hydraulic or pneumatic connections where a 1.437-inch ID seal is required. NBR material makes it appropriate for water, oil, and petroleum-based fluid service within its rated temperature and pressure range. It is sold in packages of 10, making it practical for service fleets and shop stock replenishment.

Key Features

• Dash 127 standard sizing: 1.437 inches ID x 1.625 inches OD x 0.094 inches thick
• Nitrile Butadiene Rubber (NBR) construction resists oils, fuels, and hydraulic fluids
• Round cross-section for consistent groove seating in static and dynamic applications
• Packaged in quantities of 10 to support service stock and fleet maintenance
• Lightweight at 0.01 pounds per unit, minimizing shipping weight for bulk orders

Compatibility

Designed as an OEM-style replacement O-ring for any application requiring a standard Dash 127 cross-section seal in pumps, valves, fittings, or mechanical equipment where NBR material compatibility with the process fluid has been confirmed.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or mechanical service professional. Depressurize and isolate the system before removing any component containing this seal. Inspect the groove for burrs, debris, and wear before installing the new O-ring, and apply a compatible lubricant to ease installation and prevent rolling or pinching. Do not overstretch the O-ring during installation, as permanent deformation will compromise the seal.