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National Stock Number:
5310-01-550-0701
Federal Supply Class:
5310
National Item Identification Number:
015500701
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:
| 5612-58-40 | 86928 | SEASTROM MANUFACTURING CO INC |
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Techincal Specification:
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.182 INCHES MINIMUM AND | | 0.192 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.271 INCHES MINIMUM AND | | 0.291 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | BLANK RECTANGULAR | | THICKNESS | 0.037 INCHES MINIMUM AND | | 0.043 INCHES MAXIMUM | | SPECIAL FEATURES | NO FINISH; SCREW SIZE 8 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLAT ROUND WASHER |
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