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National Stock Number:
5310-01-592-9202
Federal Supply Class:
5310
National Item Identification Number:
015929202
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:
| 013893 | 79807 | WROUGHT WASHER MFG., INC. | | 015093 | 79807 | WROUGHT WASHER MFG., INC. | | 98023A044 | 2V507 | MCMASTER-CARR SUPPLY COMPANY | | 429265E-ITEM28 | 59042 | CBS BROADCASTING INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | YELLOW OVERALL | | CROSS-SECTIONAL SHAPE STYLE | BLANK RECTANGULAR | | HOLE DIAMETER | 1.875 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | OVERALL DIAMETER | 3.375 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | ZINC YELLOW CHROMATE PLATED GRADE 8 STEEL SAE STANDARD WASHER | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | MATERIAL GRADE 8 STEEL SAE STANDARD. WASHER FOR 1.750 INCH SCREW SIZE | | SURFACE TREATMENT | | | THICKNESS | 0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
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