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National Stock Number:
5310-01-089-9208
Federal Supply Class:
5310
National Item Identification Number:
010899208
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:
| X5-4 | 35918 | HORIZON AEROSPACE LLC DBA MAGNETICS DIVISION |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 260 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 TEMPER 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.090 INCHES MINIMUM AND | | 0.096 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.1872 INCHES MINIMUM AND | | 0.1876 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.0310 INCHES MINIMUM AND | | 0.0314 INCHES MAXIMUM |
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