5310-01-171-8117 WASHER,KEY Index 5310-01-171-8120 WASHER,FLAT

National Stock Number:
5310-01-171-8119

Federal Supply Class:
5310

National Item Identification Number:
011718119

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:
7B503711083CATERPILLAR INC


Techincal Specification:
CENTER HOLE SHAPE STYLEHEXAGON
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE WIDTH ACROSS FLATS39.7 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION1E65,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1018 OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER69.8 MILLIMETERS NOMINAL
THICKNESS10.0 MILLIMETERS NOMINAL


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