5310-01-568-2963 WASHER,FLAT Index 5310-01-568-7681 WASHER,FLAT

National Stock Number:
5310-01-568-4533

Federal Supply Class:
5310

National Item Identification Number:
015684533

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:
3305AS152730003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
3305AS1527-156529HYDRAULICS INTERNATIONAL, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.270 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A564 17-4 PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.313 INCHES NOMINAL
SPECIAL FEATURESSURFACE FINISH IS 125 MICROINCH PER ANSI B46.1; ALSO BLACK OXIDE COATING PER MIL-C-13924,CL 4
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TY II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.082 INCHES NOMINAL


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