The Danco 11/16 in. D × 9/16 in. D #35 Rubber O-Ring 20 pk is your ready-to-use seal solution for common faucet and valve assemblies. Crafted in a durable rubber compound, this 20-pack ensures you have dependable spares on hand for quick, hassle-free repairs.
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Inside Diameter (ID): 9/16 in
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Outside Diameter (OD): 11/16 in
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Wall Thickness: 1/16 in
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Material: Rubber
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Shape: Round
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Pack Size: 20 pieces
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Packaging: Polybag
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Brand Compatibility: American Standard single control (Push-Pull), Harcraft, Sayco, Waltec
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Product Type: O-Ring
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ID/OD Reference: #35
This O-ring excels in faucet and valve maintenance, offering a precise seal that prevents slow leaks and improves overall valve performance. The #35 sizing (9/16" ID, 11/16" OD) is a common fit for many residential fixtures, making it a practical addition to any DIY toolbox or professional service kit.
Ideal use cases
- Replacing worn or damaged O-rings in American Standard single-control (Push-Pull) faucets
- Refurbishing valve cartridges and small hydraulic seals in compatible brands like Harcraft, Sayco, and Waltec
- Emergency leak containment in kitchen or bathroom fixtures where a precise 9/16" ID seal is required
Why this matters
- Having a 20-piece supply means you’re prepared for multiple projects without reordering mid-repair, reducing downtime.
- Rubber offers reliable elasticity to maintain a snug, long-lasting seal even after repeated temperature swings and water exposure.
- The exact 1/16" wall thickness provides the right compression for dependable sealing without overly stressing the groove.
Practical tips for installation
- Power off the water supply before any faucet work to avoid splashes and spills
- Remove the old O-ring carefully and clean the groove to ensure a fresh seating surface
- Lightly lubricate the new O-ring with plumbers' grease for smooth seating and extended life
- Press the new O-ring evenly into the groove, avoiding twists or pinches
