5310-01-517-5718 WASHER,LOCK Index 5310-01-517-5720 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-517-5719

Federal Supply Class:
5310

National Item Identification Number:
015175719

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:
161D4063P489954BAE SYSTEMS CONTROLS INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CRITICALITY CODE JUSTIFICATIONFEAT
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.096 INCHES MINIMUM AND 0.104 INCHES MAXIMUM
OVERALL DIAMETER0.176 INCHES MINIMUM AND 0.184 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION, OR THE PRESERVATION OF LIFE OR SAFETY OF OPERATING PERSONNEL
THICKNESS0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM


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