Manufacturer Part Number: BOW500109|Washer Type|USSMaterial|SteelMaterial Grade|9Screw Size|1Thread Size|Inside Diameter (Inch)|1-1/16Inside Diameter (Decimal Inch)|1.0210Inside Diameter (mm)|Outside Diameter (mm)|Outside Diameter (Inch)|2-1/2Outside Diameter (Decimal Inch - 4 Decimals)|2.5000Thickness (mm)|Thickness (Inch)|9/64Thickness (Decimal Inch - 4 Decimals)|0.1480Standards|Finish Coating|Bowma-GuardFastener Standard|ASTM F436Military Specification|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|31161807