3120-01-461-0284 BEARING,PLAIN,SELF-ALIGNING Index 5998-01-461-0286 ELECTRONIC COMPONENTS ASSEMBLY

National Stock Number:
5310-01-461-0285

Federal Supply Class:
5310

National Item Identification Number:
014610285

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:
10250055-118876U S ARMY AVIATION AND MISSILE COMMAND
TRJD-487660380TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
HOLE DIAMETER3.062 INCHES MINIMUM AND 3.072 INCHES MAXIMUM
OVERALL DIAMETER4.7180 INCHES MINIMUM AND 4.7195 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESPART NAME ASSIGNED BY MANUFACTURER WASHER, THRUST
THICKNESS0.3095 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM


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