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Locating replacement parts for equipment, maintenance, overhaul and repair can be a challenge. At Darcoid Nor-Cal Seal we are experts in providing O-ring kits specifically designed for your requirements. Seals in hydraulic and pneumatic components have the potential for hundreds, if not thousands, of different O-ring sizes. OEM part numbers are often missing, seal dimensions are unspecified or unknown, and the parts themselves are unavailable from the OEM or local supplier. In response to the aftermarket need for seals, we have developed three o-ring replacement kits. Each kit contains the most popular sizes for a wide range of sealing applications. As a result, these kits provide multiple sealing solutions for the same cost as a single OEM replacement part.

Boss Seal Kit

The Boss Seal Kit contains 20 standard tube fitting sizes, ranging from 3/32 to 2 inches that are ideal for hydraulic fittings. For most U.S.-built equipment, AS568 Kit #1 contains 30 of the most commonly used O-ring sizes for general applications. The rest of the world relies on Metric Kit #1, which contains 32 of the most common metric o-ring sizes for compatibility with equipment made overseas.


AS 568 and Metric Kits

The standard materials supplied with AS568 Kits and Metric Kits are nitrile rubber compounds N1470-70 and N1490-90. N1470-70 is compatible with most petroleum-based oils, greases, hydraulic fluids up to 121°C (250°F), as well as water glycol hydraulic fluid up to 48°C (120°F). N1490-90 is normally supplied for hydraulic fittings but also suited for general purpose applications. For more demanding sealing conditions, Parker offers a wide variety of polymer families including EPDM, Fluorocarbon and many others.

Custom designed pad containing all of the O-rings needed to assemble a component result in the following savings:

  • Easier scheduling - one ParPack per assembly
  • Reduced receiving and paperwork costs
  • Unique design helps lock in aftermarket sales
  • Reduced tooling charges
  • 1 line item - avoid multiple minimum order quantities
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