5970-00-350-5069 INSULATOR,WASHER Index 5310-00-350-5078 WASHER,FLAT

National Stock Number:
5310-00-350-5077

Federal Supply Class:
5310

National Item Identification Number:
003505077

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
360550S723040FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES
360550S757526FORD MOTOR COMPANY
705873119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
360550S823040FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES
360550S857526FORD MOTOR COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING75.0 ROCKWELL C MINIMUM AND 85.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
OVERALL DIAMETER1.000 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THICKNESS0.090 INCHES NOMINAL


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