4820-01-529-5256 VALVE,FOOT Index 3110-01-529-5258 BEARING,BALL,ANNULAR

National Stock Number:
5310-01-529-5257

Federal Supply Class:
5310

National Item Identification Number:
015295257

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:
7072247-196169ELECTRIC BOAT CORPORATION
7072247A-196169ELECTRIC BOAT CORPORATION
751-7072201-2653711NAVAL SEA SYSTEMS COMMAND
751-7072247-153711NAVAL SEA SYSTEMS COMMAND
H821-0201-2696169ELECTRIC BOAT CORPORATION


Techincal Specification:
MATERIALPLASTIC POLYETHYLENE OVERALL
PROPRIETARY CHARACTERISTICSPACS


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