5310-01-557-3211 NUT,SELF-LOCKING,HEXAGON Index 5310-01-556-0089 WASHER,FLAT

National Stock Number:
5310-01-557-5948

Federal Supply Class:
5310

National Item Identification Number:
015575948

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:
05338156161GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
053381SZ177DENEL VEHICLE SYSTEMS
ISO7091-11X21X2-A2DI9008INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)
R0050006-0102SZ177DENEL VEHICLE SYSTEMS


Techincal Specification:
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER21.0 MILLIMETERS NOMINAL
THICKNESS2.0 MILLIMETERS NOMINAL
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER11.0 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER FLAT DIAMETER 7/16
PERIPHERAL SHAPE STYLEROUND


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