5310-14-257-9865 WASHER,FLAT Index 5310-14-257-9872 WASHER,FLAT

National Stock Number:
5310-14-257-9871

Federal Supply Class:
5310

National Item Identification Number:
142579871

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:
23111DB050F0111BUREAU NORMALISATION AERONAUTIQUEESPACE
23111DB050F1236PREAULT TECHNOLOGIES
L23111-50DBF0111BUREAU NORMALISATION AERONAUTIQUEESPACE


Techincal Specification:
CASEHARDENING INDICATORNOT CASEHARDENED
CENTER HOLE SHAPE STYLE130
CROSS-SECTIONAL SHAPE STYLE140
HEAT TREATMENTF-AS FABRICATED
MATERIALALL-ALU AG5-F0111
MATERIAL THICKNESS1.0 MILLIMETERS NOMINAL
PERIPHERAL SHAPE STYLE120
MINIMUM TENSILE STRENGTH28.0 HECTOBARS
MINIMUM YIELD STRENGTH14.0 HECTOBARS
OUTSIDE DIAMETER10.0 MILLIMETERS NOMINAL


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