Aeronautical Floating Anchor Nuts (Cadmium Free) - BLUE-FM5000
Military Standard Flat Washer - MS20002
Main features
High resistance aeronautical type washers with cadmium plating treatment.
Available only in inch sizes and for use with NAS screws and bolts.
These washers have a 45° countersink located in the internal hole.
*Available in various sizes (pdf).
Data sheet