5310-00-639-7660 WASHER,SPRING TENSION Index 5306-00-639-7669 BOLT,SHOULDER

National Stock Number:
5310-00-639-7664

Federal Supply Class:
5310

National Item Identification Number:
006397664

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:
1D694511083CATERPILLAR INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING62.0 ROCKWELL B MINIMUM AND 68.0 ROCKWELL B MAXIMUM
HOLE DIAMETER1.531 INCHES NOMINAL
OVERALL DIAMETER2.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.187 INCHES NOMINAL


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