5305-00-853-0440 SCREW,CAP,HEXAGON HEAD Index 1560-00-853-0449 SUPPORT ASSY

National Stock Number:
5310-00-853-0441

Federal Supply Class:
5310

National Item Identification Number:
008530441

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:
808000035657057NAVCOM DEFENSE ELECTRONICS, INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.310 INCHES NOMINAL
OVERALL DIAMETER0.562 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3650 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYSTYRENE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.050 INCHES NOMINAL


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