5340-01-394-7888 COVER,ACCESS Index 3120-01-394-7890 BEARING,WASHER,THRUST

National Stock Number:
5310-01-394-7889

Federal Supply Class:
5310

National Item Identification Number:
013947889

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:
21107182653711NAVAL SEA SYSTEMS COMMAND
582-6408329 FIND 1453711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-22241 TY 1 GR A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.764 INCHES MINIMUM AND
1.769 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER2.370 INCHES MINIMUM AND
2.373 INCHES MAXIMUM


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