5310-00-809-0343 WASHER,FLAT Index 5310-00-809-0345 WASHER,FLAT

National Stock Number:
5310-00-809-0344

Federal Supply Class:
5310

National Item Identification Number:
008090344

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:
50229673030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM
OVERALL DIAMETER0.400 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM


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