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Lock Washer for 3/8" Fittings

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Product details

Management number 248409117 Release Date 2026/09/03 List Price $0.81 Model Number 248409117
Category

Rancilio 3/8" Lock Washer

An internal-tooth lock washer sized for 3/8" fittings, used across Rancilio plumbing connections to keep fittings from backing off under vibration.

SPECIFICATIONS

  • Dimensions: 26mm x 18mm, internal teeth

COMPATIBILITY

  • Fits: Rancilio 3/8" plumbing fittings
  • Replaces: Rancilio R_619

INSTALLATION

Simple DIY swap during any 3/8" fitting service.

PRO TIPS

  • Always reinstall a lock washer like this on plumbing joints that see heat cycling, a flat washer alone won't hold torque as the fitting expands and contracts, and that's how slow drips start.

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