5310-01-249-4202 WASHER,FLAT Index 5310-01-249-4204 WASHER,FLAT

National Stock Number:
5310-01-249-4203

Federal Supply Class:
5310

National Item Identification Number:
012494203

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:
1128EC41153-1926512NORTHROP GRUMMAN SYSTEMS CORPORATION
1128EC41153-1979RG9NORTHROP GRUMMAN SYSTEMS CORPORATION
1283-35313556LABINAL COMPONENTS AND SYSTEMS INC CINCH MILITARY AEROSPACE DIV
GA11A3E26512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM
OVERALL DIAMETER0.620 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.063 INCHES NOMINAL


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