5330-00-231-4249 GASKET Index 5310-00-231-4255 WASHER,FLAT

National Stock Number:
5310-00-231-4252

Federal Supply Class:
5310

National Item Identification Number:
002314252

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:
1761-381PC7181316PORTSMOUTH NAVAL SHIPYARD
1762-381PC7181316PORTSMOUTH NAVAL SHIPYARD
375910PCX480064NAVAL SHIP SYSTEMS COMMAND
25950PCX481316PORTSMOUTH NAVAL SHIPYARD
1770-381PC7181316PORTSMOUTH NAVAL SHIPYARD
2065-112PCX496169ELECTRIC BOAT CORPORATION
7503PC11024047COOPER INDUSTRIES INC DBA COOPER TOOLS
7504PC11024047COOPER INDUSTRIES INC DBA COOPER TOOLS
7504PC1106X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV
7503PC1106X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV
389886PC11080064NAVAL SHIP SYSTEMS COMMAND
4801-70364ALTP2PC7180064NAVAL SHIP SYSTEMS COMMAND
4801-70365PC7180064NAVAL SHIP SYSTEMS COMMAND
4801-70373ALTP1PC7180064NAVAL SHIP SYSTEMS COMMAND
8403PC7124047COOPER INDUSTRIES INC DBA COOPER TOOLS
8404PC7124047COOPER INDUSTRIES INC DBA COOPER TOOLS
8412PC7124047COOPER INDUSTRIES INC DBA COOPER TOOLS
8412PC716X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV
8404PC716X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV
8403PC716X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.562 INCHES NOMINAL
MINIMUM TENSILE STRENGTH2 POUNDS PER SQUARE INCH
OVERALL DIAMETER1.000 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.062 INCHES NOMINAL


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