5310-00-184-8981 WASHER,FLAT Index 5310-00-184-8985 WASHER,FLAT

National Stock Number:
5310-00-184-8984

Federal Supply Class:
5310

National Item Identification Number:
001848984

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:
900127718876U S ARMY AVIATION AND MISSILE COMMAND
AN960PA1088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.203 INCHES NOMINAL
OVERALL DIAMETER0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-359 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-561 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 3003 OR ALUMINUM ALLOY 1100 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTANODIZE OVERALL
THICKNESS0.064 INCHES NOMINAL


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