5310-01-327-9711 WASHER,FLAT Index 5310-01-327-9713 WASHER,FLAT

National Stock Number:
5310-01-327-9712

Federal Supply Class:
5310

National Item Identification Number:
013279712

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:
904214706848HONEYWELL INTERNATIONAL INC
904214759501UNISON INDUSTRIES LLC
904214781579MASON ELECTRIC CO.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING64.0 ROCKWELL A MINIMUM AND 68.0 ROCKWELL A MAXIMUM
HOLE DIAMETER0.468 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.688 INCHES NOMINAL
THICKNESS0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM


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