5998-00-209-2086 CIRCUIT CARD ASSEMBLY Index 5310-00-209-2090 WASHER,FLAT

National Stock Number:
5310-00-209-2089

Federal Supply Class:
5310

National Item Identification Number:
002092089

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:
3391500198PRATT & WHITNEY CANADA CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.943 INCHES MINIMUM AND 0.963 INCHES MAXIMUM
OVERALL DIAMETER1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 510 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESCHAMFERED BOTH SIDES OF HOLE 45 DEG BY 0.020 TO 0.025 IN.
THICKNESS0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM


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