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National Stock Number:
5310-00-395-3602
Federal Supply Class:
5310
National Item Identification Number:
003953602
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:
| 10910174 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 10910174-34 | 19200 | US ARMY ARDEC RDECOM | | 10910174-34 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12569613-34 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM | | OVERALL DIAMETER | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.082 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
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