3120-01-201-9954 BUSHING,SLEEVE Index 5340-01-201-9956 CAP,PROTECTIVE,DUST AND MOISTURE

National Stock Number:
5310-01-201-9955

Federal Supply Class:
5310

National Item Identification Number:
012019955

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:
936575119200US ARMY ARDEC RDECOM
9810145-0281860HUTCHINSON AEROSPACE & INDUSTRY, INC.
9810145-02K0479BARRY CONTROLS LTD
9810145-02U2255STOP-CHOC LIMITED
9810145-0280481860HUTCHINSON AEROSPACE & INDUSTRY, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.532 INCHES NOMINAL
OVERALL DIAMETER2.130 INCHES NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTZINC OVERALL
THICKNESS0.134 INCHES NOMINAL


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