This is a kind of Flat Washers.
Part Number: NAS1149
Function: Washers Aircraft ( NAS1149 Series, Replaces AN960 Series )
Manufacturer: Genuine Aircraft Hardware
Image :
Description:
1. Remove all burrs and sharp edges.
2. Dimensions in inches and apply after finish unless otherwise specified.
3. Surface roughness shall be 125 microinches Ra per asme B46.1
