5310-12-193-4581 WASHER,FLAT Index 4010-12-197-4678 GUY

National Stock Number:
5310-12-193-4582

Federal Supply Class:
5310

National Item Identification Number:
121934582

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:
2430100496D8015ROBERT BOSCH GMBH
869 017 03 40D8266MTU FRIEDRICHSHAFEN GMBH
8690170340D8266MTU FRIEDRICHSHAFEN GMBH


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING48,0 ROCKWELL C MINIMUM AND 54,0 ROCKWELL C MAXIMUM
HOLE DIAMETER6,40 MILLIMETERS MINIMUM AND 6,76 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONDIN17200 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 1.0503
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER21,29 MILLIMETERS MINIMUM AND 21,50 MILLIMETERS MAXIMUM
THICKNESS1,95 MILLIMETERS NOMINAL


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