5310-01-363-2885 WASHER,FLAT Index 5310-01-363-2887 WASHER,FLAT

National Stock Number:
5310-01-363-2886

Federal Supply Class:
5310

National Item Identification Number:
013632886

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:
04-0002 ITEM 5220019WARD LEONARD CT LLC
04-0060 ITEM NO 5220019WARD LEONARD CT LLC
235A2310AF320019WARD LEONARD CT LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.800 INCHES MINIMUM AND 1.840 INCHES MAXIMUM
OVERALL DIAMETER3.480 INCHES MINIMUM AND 3.520 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1009 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTZINC OVERALL
THICKNESS0.063 INCHES NOMINAL


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