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National Stock Number:
5310-01-179-2343
Federal Supply Class:
5310
National Item Identification Number:
011792343
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:
| LD153-0031-0018 | 07632 | SERRA MANUFACTURING CORPORATION | | LD153-0031-0018 | 10630 | ANILLO INDUSTRIES LLC | | LD153-0031-0018 | 43999 | THE BOEING COMPANY | | LD153-0031-0018 | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.265 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.448 INCHES MINIMUM AND | | 0.473 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.057 INCHES MINIMUM AND | | 0.069 INCHES MAXIMUM | | SPECIAL FEATURES | COLOR IRIDESCENT YELLOW |
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