5310-01-556-6817 WASHER,LOCK Index 5310-01-556-1633 NUT,PLAIN,CAP

National Stock Number:
5310-01-557-6811

Federal Supply Class:
5310

National Item Identification Number:
015576811

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:
BS4320-M6X14-A2DK7766BRITISH STANDARDS INSTITUTION
R2003019-CC00SZ177DENEL VEHICLE SYSTEMS
R200302156161GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
R2003021SZ177DENEL VEHICLE SYSTEMS
R2003021-CD00SZ177DENEL VEHICLE SYSTEMS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER6.4 MILLIMETERS NOMINAL
MATERIALSTEEL BODY
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER14.0 MILLIMETERS NOMINAL
SURFACE TREATMENTZINC SEALING ELEMENT
THICKNESS1.6 MILLIMETERS NOMINAL


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