5310-01-456-0371 WASHER,FLAT Index 5365-01-456-0373 SPACER,SLEEVE

National Stock Number:
5310-01-456-0372

Federal Supply Class:
5310

National Item Identification Number:
014560372

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:
NAS1149FN616B80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1149FN616BA0170LEONARDO SPA AEROSTRUCTURE DIVISION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
MATERIALSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTOXIDE OVERALL
THICKNESS0.016 INCHES NOMINAL


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