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National Stock Number:
5310-01-120-1445
Federal Supply Class:
5310
National Item Identification Number:
011201445
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:
| 10109358 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 196B8310 | 05606 | GENERAL DYNAMICS-OTS, INC. | | 196B8310 | 1GUP7 | VERMONT AEROSPACE INDUSTRIES, LLC | | 196B8310 | 8N777 | SUPREME SCREW PRODUCTS, INC. |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 170 OR | | COPPER ALLOY 172 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-533,TEMPER 1/4 H FED SPEC ALL MATERIAL RESPONSES OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.313 INCHES MINIMUM AND | | 0.319 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.780 INCHES MINIMUM AND | | 0.800 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.0745 INCHES MINIMUM AND | | 0.0785 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES TOP | | 32.0 MICROINCHES BOTTOM | | 32.0 MICROINCHES INNER |
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