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The VALUE COLLECTION WS-HF-CAM-022 is a square cross-section O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), a material well suited to petroleum-based fluids, hydraulic oils, and water service. With an inside diameter of 1.25 inches and an outside diameter of 1.94 inches, the ring measures 0.25 inches in cross-section thickness. The square profile increases sealing surface area compared to a round cross-section, reducing the risk of rollout in dynamic or face-seal applications. Plumbers, HVAC technicians, and fluid-systems mechanics routinely specify Buna-N square rings for static face seals, valve stems, fittings, and pump covers where petroleum fluid compatibility is required.
This O-ring is appropriate for residential and light commercial plumbing, HVAC refrigerant-adjacent fluid lines, hydraulic assemblies, and general industrial fluid-handling equipment. The Buna-N compound resists petroleum oils, fuels, and many hydraulic fluids across a broad temperature range, making it a reliable choice for pump housings, manifold faces, and pipe-union seats. It is sold individually per package, with a minimum order quantity of 5 units.
Designed as an OEM-style replacement or service-stock square O-ring for static face-seal and valve-body applications requiring a 1.25-inch ID Buna-N square ring conforming to Dash Number 001 sizing standards.
Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic-systems mechanics during valve service, pump overhaul, or fitting replacement. Always depressurize and drain the affected line or system before removing the existing seal. Inspect the groove for nicks, corrosion, or debris before seating the new ring; a damaged groove will compromise the seal. Apply a light coat of a compatible lubricant to ease installation and prevent tearing during assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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