ORM O-ring 0250-40 NBR

★★★★★ 4.3 57 reviews

US$0.62
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US$0.62
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Free shipping Free 30-day returns

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Product details

Management number 248407141 Release Date 2026/09/03 List Price US$0.62 Model Number 248407141
Category

ORM O-Ring 0250-40, NBR - 25mm ID x 4mm Thick

A standard NBR (nitrile) O-ring, 4.0 mm cross-section with a 25.00 mm internal diameter, a common size used throughout espresso machine group seals, valve bodies, and fittings.

SPECIFICATIONS

  • 4.0 mm thickness
  • 25.00 mm internal diameter
  • NBR (nitrile rubber) compound

COMPATIBILITY

  • Works with: group heads, valves, and fittings sized for this O-ring, check your machine's exploded parts diagram for this dimension before ordering

INSTALLATION

Simple DIY replacement, lightly lubricate with food-safe silicone grease before seating to ease installation and extend seal life.

PRO TIPS

  • NBR is a solid all-around choice for water-side seals, but if the O-ring sits near direct steam or sustained high heat, check whether your machine calls for a silicone or EPDM equivalent instead, NBR degrades faster under prolonged heat exposure.

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