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National Stock Number:
5310-01-243-7260
Federal Supply Class:
5310
National Item Identification Number:
012437260
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:
| 122-5343946 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 122-5343946 PC19 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 123-4403540 PART 54 | 43689 | HUNTINGTON INGALLS INC | | 123-4498410 PART 54 | 43689 | HUNTINGTON INGALLS INC | | 5343946-0019 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 464 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 1.020 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.625 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.1225 INCHES MINIMUM AND | | 0.1275 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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