5340-00-082-1875 CAP-PLUG,PROTECTIVE,DUST AND MOI Index 3110-00-082-1877 BEARING,BALL,ANNULAR

National Stock Number:
5310-00-082-1876

Federal Supply Class:
5310

National Item Identification Number:
000821876

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:
B8005-12-018FN6381996U S ARMY AVIATION AND MISSILE COMMAND
EL12-018-6393568HARSCO CORP BMY-COMBAT SYSTEMS DIV
F8005-12-018-06325169PROJECT MANAGER AMPHIBIOUS LIGHTERS ST LOUIS MO


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER3.531 INCHES MINIMUM AND 3.594 INCHES MAXIMUM
OVERALL DIAMETER5.469 INCHES MINIMUM AND 5.531 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-21922,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYETHYLENE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM


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