4820-14-453-3499 VALVE,RELIEF,PRESSURE AND TEMPER Index 9905-14-453-3971 PLATE,IDENTIFICATION

National Stock Number:
5310-14-453-3593

Federal Supply Class:
5310

National Item Identification Number:
144533593

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:
9611083794404RAYTHEON COMPANY
96110837F8294THALES DMS FRANCE SAS
E25514B80HYAPAF0110AFNOR ASSOCIATION FRANCAISE DE NORMALISATION
E25514B80HYAPAF1236PREAULT TECHNOLOGIES
E25514B80HYAPAFA096LEVRAT SARL
E25514B80LRAPAF0110AFNOR ASSOCIATION FRANCAISE DE NORMALISATION
S1HY080APAF0110AFNOR ASSOCIATION FRANCAISE DE NORMALISATION
S1LR080APAF0110AFNOR ASSOCIATION FRANCAISE DE NORMALISATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER8.4 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONNF A 35-574 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP Z2CND17-12 OVERALL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER18.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMA-E25-27 CODE PA MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS1.5 MILLIMETERS NOMINAL


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