5310-01-066-8664 WASHER,FLAT Index 5310-01-066-8666 WASHER,FLAT

National Stock Number:
5310-01-066-8665

Federal Supply Class:
5310

National Item Identification Number:
010668665

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:
185540003956NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM
OVERALL DIAMETER2.000 INCHES NOMINAL
MATERIALSTEEL COMP 303 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMS69510,FINISH NO 29 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.125 INCHES NOMINAL


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