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National Stock Number:
5310-01-174-8250
Federal Supply Class:
5310
National Item Identification Number:
011748250
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:
| 302-0642-180 | 13499 | ROCKWELL COLLINS, INC. | | 5602-62-62 | 86928 | SEASTROM MANUFACTURING CO INC |
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Techincal Specification:
| MATERIAL | PAPER OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.738 INCHES MINIMUM AND 0.758 INCHES MAXIMUM | | THICKNESS | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 60.0 ROCKWELL C MINIMUM AND 100.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-1148,GRADE CH MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
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