5310-00-579-4161 WASHER,FLAT Index 5310-00-579-4163 WASHER,FLAT

National Stock Number:
5310-00-579-4162

Federal Supply Class:
5310

National Item Identification Number:
005794162

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:
10W040-39C880JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
10W040-39C8876823NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTCOLD DRAWN 1/4 HARD CONDITION
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
OVERALL DIAMETER0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.040 INCHES NOMINAL


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