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National Stock Number: 5310-01-528-7114
Federal Supply Class: 5310
National Item Identification Number: 015287114
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:
LD153-0035-0006 | 43999 | THE BOEING COMPANY |
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Techincal Specification:
CENTER HOLE SHAPE STYLE | ROUND | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | HOLE DIAMETER | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM | OVERALL DIAMETER | 0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | IRON ALLOY 660 OR STEEL COMP 632 OVERALL | PERIPHERAL SHAPE STYLE | ROUND | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | PASSIVATE OVERALL | THICKNESS | 0.054 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
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