4330-01-472-8878 FILTER Index 7644-01-472-8880 DIGITAL GEOSPATIAL PRODUCTS

National Stock Number:
5310-01-472-8879

Federal Supply Class:
5310

National Item Identification Number:
014728879

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:
2640-808X01 PC96169ELECTRIC BOAT CORPORATION
2640-808X01 PC 4880064NAVAL SHIP SYSTEMS COMMAND
845-4687600 ITEM 3380064NAVAL SHIP SYSTEMS COMMAND
2640-808X196169ELECTRIC BOAT CORPORATION
264080801-004896169ELECTRIC BOAT CORPORATION
2642-820-06 ITEM 3396169ELECTRIC BOAT CORPORATION


Techincal Specification:
MATERIALPLASTIC ACETAL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.781 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.969 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.062 INCHES NOMINAL


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