5310-01-044-2285 WASHER,FLAT Index 5310-01-044-2288 WASHER,FLAT

National Stock Number:
5310-01-044-2287

Federal Supply Class:
5310

National Item Identification Number:
010442287

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:
128-0053-00375102SHUGART CORP DBA INTL ASSEMBLY SPECIALISTS
5710-22-3286928SEASTROM MANUFACTURING CO INC
723206-205869RAYTHEON COMPANY
SMC1200-207632SERRA MANUFACTURING CORPORATION
5710-22-32P86928SEASTROM MANUFACTURING CO INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.137 INCHES MINIMUM AND 0.147 INCHES MAXIMUM
OVERALL DIAMETER0.425 INCHES MINIMUM AND 0.445 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.032 INCHES NOMINAL


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