5310-01-612-3781 WASHER,LOCK 5310-01-612-4610 WASHER,FLAT

National Stock Number:
5310-01-612-4557

Federal Supply Class:
5310

National Item Identification Number:
016124557

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:
AEW23X08W000BD82C105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
AEW23X08W000BD82C196906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
G1922BH080W01417GENERAL DYNAMICS LAND SYSTEMS INC.
G1922M01417GENERAL DYNAMICS LAND SYSTEMS INC.
AEW23X08W000BD89B105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER8.9 MILLIMETERS MINIMUM AND 9.1 MILLIMETERS MAXIMUM
MATERIALSTEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, PLAIN
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER31.4 MILLIMETERS MINIMUM AND 32.0 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 TYPE III OR V, FE/ZN2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THICKNESS2.0 MILLIMETERS MINIMUM AND 2.3 MILLIMETERS MAXIMUM


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