5330-00-230-6925 PACKING,PREFORMED Index 5365-00-230-6949 SPACER,RING

National Stock Number:
5310-00-230-6939

Federal Supply Class:
5310

National Item Identification Number:
002306939

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:
2063-39PC2996169ELECTRIC BOAT CORPORATION
212-68-25ALT6PC2980064NAVAL SHIP SYSTEMS COMMAND
214-6800-794293PC2980064NAVAL SHIP SYSTEMS COMMAND
240-6713-1036560REVAPC2980064NAVAL SHIP SYSTEMS COMMAND
2463-21PC2996169ELECTRIC BOAT CORPORATION
2263-34ALT5PC2996169ELECTRIC BOAT CORPORATION
253-67-020PC2980064NAVAL SHIP SYSTEMS COMMAND
313-68-5ALT6PC2980064NAVAL SHIP SYSTEMS COMMAND
323-5800-232118PC2980064NAVAL SHIP SYSTEMS COMMAND
2463-44ALT6PC2996169ELECTRIC BOAT CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER2.625 INCHES NOMINAL
OVERALL DIAMETER3.687 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.062 INCHES NOMINAL


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