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National Stock Number:
5310-01-228-6834
Federal Supply Class:
5310
National Item Identification Number:
012286834
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:
| 350-0513-000 | 76371 | MECHANICAL EQUIPMENT COMPANY, INC. | | 5900-78 | 07382 | ROTOR CLIP COMPANY, INC. | | 5900-78 | 79136 | TRUARC COMPANY LLC DBA WALDES TRUARC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 44.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.789 INCHES MINIMUM AND 0.799 INCHES MAXIMUM | | OVERALL DIAMETER | 1.090 INCHES MINIMUM AND 1.100 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE1060-1090 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THICKNESS | 0.0765 INCHES MINIMUM AND 0.0782 INCHES MAXIMUM |
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