5310-00-599-3449 WASHER,FLAT Index 5330-00-599-3458 GASKET

National Stock Number:
5310-00-599-3454

Federal Supply Class:
5310

National Item Identification Number:
005993454

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:
2132-425PCU381316PORTSMOUTH NAVAL SHIPYARD
2132-482PCU381316PORTSMOUTH NAVAL SHIPYARD
313-4105A161903PC2080064NAVAL SHIP SYSTEMS COMMAND
425-4105-722971ALT1PCU380064NAVAL SHIP SYSTEMS COMMAND
482-4105-721590PCU380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.500 INCHES NOMINAL
OVERALL DIAMETER1.375 INCHES NOMINAL
MINIMUM TENSILE STRENGTH2500 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.062 INCHES NOMINAL


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