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National Stock Number:
5310-01-286-0475
Federal Supply Class:
5310
National Item Identification Number:
012860475
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.
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Manufacturer Information:
| 12577055 | 19200 | US ARMY ARDEC RDECOM | | 12577055 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL | | K-133 | 1511A | SOLTAM SYSTEMS LTD. | | K-133 | 2291A | ELBIT SYSTEMS C4I AND CYBER LTD | | K-133 | S3151 | SOLTAM SYSTEMS LTD. DBA SOLTAM LTD. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 12.0 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B103 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | COPPER ALLOY 521 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 20.0 MILLIMETERS NOMINAL | | SURFACE FINISH | 6.3 MICROMETERS TOP | | THICKNESS | 3.0 MILLIMETERS NOMINAL |
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