5998-00-448-4721 CIRCUIT CARD ASSEMBLY Index 1680-00-448-4725 DISK,DISCHARGE

National Stock Number:
5310-00-448-4723

Federal Supply Class:
5310

National Item Identification Number:
004484723

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:
BACW10P257AT77272THE BOEING COMPANY


Techincal Specification:
MATERIALALUMINUM ALLOY 5052 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 H38 FED SPEC SINGLE MATERIAL RESPONSE OR
QQ-A-250/8 H36 FED SPEC SINGLE MATERIAL RESPONSE OR
QQ-A-250/8 H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.202 INCHES MINIMUM AND
0.204 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.750 INCHES MINIMUM AND
0.752 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.063 INCHES NOMINAL
SPECIFICATION/STANDARD DATA81205-BACW10P MANUFACTURERS STANDARD
THE MANUFACTURERS DATA
MANUFACTURERS CODE77272
DESIGN CONTROL REFERENCEBACW10P257AT


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