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Condition:
Factory New
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Learn more:
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MFR:
RPI
Ships from Manufacturer
- MPN: RPO312
- Phone: (800) 221-9723
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Frequently asked questions
Are these O-rings made from durable materials?
Yes, these O-rings are constructed from high-quality Nitrile (Buna N). This material is specifically chosen for its durability and reliability in sealing applications, boasting a 70 Durometer hardness rating.
Is this a direct replacement for my A-DEC equipment?
Yes, the RPI RPO312 is designed as a direct replacement part. It specifically cross-references to OEM Part #030-004-00 and #300593, ensuring full compatibility with A-DEC Decade 1010 Dental Chairs.
How many O-rings come in a single order?
Each order includes a convenient package of 12 O-rings, ensuring you have enough on hand for your maintenance or repair needs.
Does this part fit the manifold flow adjustment assembly?
Yes, this O-ring is specifically engineered for use within the Manifold Flow Adjustment and Check Valve Stem of the Dilutor Assembly/Quick Connect (3/16” Female).
Are these O-rings standard in size?
Yes, they follow the standard Industry Part #AS568-004 specification. The precise physical dimensions are:
- Inner Diameter: 0.070 inches
- Outer Diameter: 0.210 inches
- Cross-Section: 0.070 inches
Should I purchase this as part of a larger kit?
While this is a standalone part, it is also a included component in the comprehensive O-Ring Kit (RPI Part #RPK404), which may be useful if you are performing a full overhaul of your equipment.
Is this an authentic factory new part?
Yes, this is a Factory New RPI manufactured component, ensuring you receive a product that meets industry standards for performance and reliability.
Does this work with the Dilutor Assembly?
Yes, the RPO312 is compatible with the Dilutor Assembly/Quick Connect found in A-DEC Decade 1010 Dental Chairs.
Are there other parts recommended to go with this?
For maintenance on your Handpiece Control Block, you may also want to consider the Handpiece Control Block (RPI Part #ADK142), which is frequently used alongside these assemblies.
What is the industry standard part number for this?
This component is identified by the industry standard number AS568-004, confirming its precise, standardized dimensions and compatibility.

RPI RPO312 Industry Part #As568-004