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Recent content by alwelsh

  1. alwelsh

    Source of NAS 1638 Hyd Fluid Cleanliness

    Does anyone know where I can get a copy of National Aeronautical Society Hydraulic Fluid Cleanliness Standards NAS 1638 Class 6 and is there any table of ISO/ANSI/SAE equivalents.
  2. alwelsh

    Hi Performance Steel Washers

    I am looking for a source of information, dimensions, material and properties (hardness) and potential suppliers for fasteners, regular flat and lock washers (not helical spring type), for use with SAE Gr8 & A9 (ISO 10.9 &12.9) bolts. Also does anyone have experience with these using Dacromet or...
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