5310-01-566-8687 NUT,PLAIN,HEXAGON Index 5310-01-566-8702 NUT,SELF-LOCKING,HEXAGON

National Stock Number:
5310-01-566-8690

Federal Supply Class:
5310

National Item Identification Number:
015668690

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:
M99-1750DDW5MILITARY SYSTEMS GROUP, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORBLACK OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.281 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,FLAT,0.250,0.625OD,SST
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.625 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THICKNESS0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM


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