5310-01-583-8523 WASHER,FLAT Index 5310-01-583-8675 WASHER,LOCK

National Stock Number:
5310-01-583-8581

Federal Supply Class:
5310

National Item Identification Number:
015838581

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:
98017A61539428MCMASTER-CARR SUPPLY CO
T2700800WFM3DHS SYSTEMS LLC
T27008092878HDT EXPEDITIONARY SYSTEMS INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING70.0 ROCKWELL B NOMINAL
HOLE DIAMETER0.149 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT, NUMBER 6
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER0.375 INCHES NOMINAL
THICKNESS0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM


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