5310-00-468-1161 WASHER,FLAT Index 3020-00-468-1180 GEAR,SPUR

National Stock Number:
5310-00-468-1163

Federal Supply Class:
5310

National Item Identification Number:
004681163

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:
324251321340ITT TELECOM PRODUCTS CORP NETWORK SYSTEMS DIV
FFW92A81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
OVERALL DIAMETER0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESSPEC APPLIES EXCEPT DIMENSIONS AND FINISH
SURFACE TREATMENTZINC OVERALL
THICKNESS0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM


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