5310-01-135-4161 WASHER,FLAT Index 5310-01-135-4163 WASHER,FLAT

National Stock Number:
5310-01-135-4162

Federal Supply Class:
5310

National Item Identification Number:
011354162

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:
AN960KD816188044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN960KD816L88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FF-W-9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
AN960KD816LA0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE
ASNA2397KD816LF6198AIRBUS OPERATIONS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 COND T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 GRADE AND D CLASS
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
THICKNESS0.016 INCHES NOMINAL


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