5826-00-995-6341 CLAMP,RETAINING Index 5999-00-995-6348 HEAT SINK,ELECTRICAL-ELECTRONIC

National Stock Number:
5310-00-995-6346

Federal Supply Class:
5310

National Item Identification Number:
009956346

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:
82278-60402734LOCKHEED MARTIN CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL


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