5306-00-531-9615 BOLT,MACHINE Index 5310-00-531-9618 WASHER,FLAT

National Stock Number:
5310-00-531-9617

Federal Supply Class:
5310

National Item Identification Number:
005319617

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:
2W2B33-29-12043999THE BOEING COMPANY


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.515 INCHES MINIMUM AND
0.521 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.896 INCHES MINIMUM AND
0.916 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.119 INCHES MINIMUM AND
0.121 INCHES MAXIMUM
SURFACE FINISH100.0 MICROINCHES TOP
100.0 MICROINCHES BOTTOM
THE MANUFACTURERS DATA
MANUFACTURERS CODE43999
DESIGN CONTROL REFERENCE2W2B33-29-120


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