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National Stock Number:
5310-01-194-6459
Federal Supply Class:
5310
National Item Identification Number:
011946459
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:
| 12339724 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 5310PL0810388 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 5579306 | 34623 | AM GENERAL LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.344 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A682 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 1050 OVERALL OR STEEL COMP 1055 OVERALL OR STEEL COMP 1060 OVERALL OR STEEL COMP 1065 OVERALL OR STEEL COMP 1070 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.620 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL | | THICKNESS | 0.109 INCHES NOMINAL |
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