5310-00-662-3299 WASHER,FLAT Index 3120-00-662-3304 WASHER,FLAT

National Stock Number:
5310-00-662-3303

Federal Supply Class:
5310

National Item Identification Number:
006623303

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:
2W2SP21-26-9443999THE BOEING COMPANY
2W2SP21-26-946R888J. T. D. STAMPING CO INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.327 INCHES MINIMUM AND 0.333 INCHES MAXIMUM
OVERALL DIAMETER0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH100.0 MICROINCHES BOTTOM
SURFACE FINISH100.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM


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