HOW TO SPECIFY LAMINAR SEALING RINGS - FK6 DOUBLE WOUND

FEY part numbers are a combination of the series, style, bore/shaft diameter (D), radial section (RB), ring thickness (RD), and ring material.

A special part number is assigned to ring sizes that have special features like coatings or surface finishes.

The following is an example of a FEY part number:

Style     = ASD
D          = 50
RB        = 2.4                                             
RD        = 1.45