5310-00-901-6783 WASHER,FLAT Index 5310-00-901-6785 WASHER,FLAT

National Stock Number:
5310-00-901-6784

Federal Supply Class:
5310

National Item Identification Number:
009016784

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:
BACW10P258AT81205THE BOEING COMPANY
LD153-0014-001332184SABRELINER CORP
LD153-0014-001343999THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTF-AS FABRICATED
HOLE DIAMETER0.265 INCHES NOMINAL
OVERALL DIAMETER0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION-QQ-A-150/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 5052 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION-MIL-C-8541 MIL SPEC 1ST TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OR ZINC AND CHROMATE OVERALL
THICKNESS0.0295 INCHES MINIMUM AND 0.0345 INCHES MAXIMUM


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