5305-01-518-4275 SCREW,CAP,SOCKET HEAD Index 5305-01-518-4277 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5310-01-518-4276

Federal Supply Class:
5310

National Item Identification Number:
015184276

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:
1062547956161GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
DIN126-17.5-100HV-A3LD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
ISO7091-17.5-100HV-A3LI9008INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER20.000 MILLIMETERS MINIMUM AND 20.430 MILLIMETERS MAXIMUM
OVERALL DIAMETER32.4 MILLIMETERS MINIMUM AND 34.0 MILLIMETERS MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS3.000 MILLIMETERS NOMINAL


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