5310-00-956-9531 WASHER,FLAT Index 4935-00-956-9546 TOOL BOX,PORTABLE

National Stock Number:
5310-00-956-9533

Federal Supply Class:
5310

National Item Identification Number:
009569533

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:
1016780518876U S ARMY AVIATION AND MISSILE COMMAND
1026910B6S1INTERNATIONAL BUSINESS MACHINES CORP PARTS ORDER CENTER DEPT E - 54
10269130874INTERNATIONAL BUSINESS MACHINES CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
OVERALL DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.049 INCHES NOMINAL


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