5310-01-389-8020 NUT,PLAIN,HEXAGON Index 5305-01-389-8022 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5310-01-389-8021

Federal Supply Class:
5310

National Item Identification Number:
013898021

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:
0.375ODX0.156ID X0.049THK CRES3D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
MS15795-80680205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS15795-80696906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS15795-806 CRE S 316D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
MATERIALSTEEL COMP 316 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.151 INCHES MINIMUM AND
0.164 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.370 INCHES MINIMUM AND
0.390 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.049 INCHES NOMINAL
DEPARTURE FROM CITED DOCUMENTASMODIFIED BY MATERIAL


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