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National Stock Number:
5310-01-089-9204
Federal Supply Class:
5310
National Item Identification Number:
010899204
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:
| 993338-109 | 82577 | RAYTHEON COMPANY | | A370-113-109 | 86928 | SEASTROM MANUFACTURING CO INC | | SMC1200-480 | 07632 | SERRA MANUFACTURING CORPORATION |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 5052 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/8,TEMPER H32 FED SPEC SINGLE MATERIAL RESPONSE OR | | QQ-A-250/8,TEMPER H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PAINT OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 595 FED STD SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.143 INCHES MINIMUM AND | | 0.153 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.262 INCHES MINIMUM AND | | 0.282 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.016 INCHES NOMINAL | | COLOR | BLACK OVERALL | | SPECIAL FEATURES | COLOR NUMBER 37038 | | SPECIFICATION/STANDARD DATA | 82577-993338 MANUFACTURERS STANDARD |
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