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National Stock Number:
5310-00-781-9862
Federal Supply Class:
5310
National Item Identification Number:
007819862
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:
| 5310007819862 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | | 8386476 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 8386476 | 5A910 | ELC INDUSTRIES CORP. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 88.0 ROCKWELL M MINIMUM AND 117.0 ROCKWELL M MAXIMUM | | HOLE DIAMETER | 0.240 INCHES NOMINAL | | OVERALL DIAMETER | 0.430 INCHES NOMINAL | | MATERIAL | PLASTIC OVERALL | | MINIMUM TENSILE STRENGTH | 10400 POUNDS PER SQUARE INCH | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.050 INCHES NOMINAL |
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