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National Stock Number:
5310-01-560-0639
Federal Supply Class:
5310
National Item Identification Number:
015600639
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:
| 8197137-6 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.836 INCHES MINIMUM AND 0.873 INCHES MAXIMUM | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | (DRAWING)WASHER, FLAT(8197137) | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 1.993 INCHES MINIMUM AND 2.030 INCHES MAXIMUM | | SPECIAL FEATURES | SURFACE:ANNEALED;MINIMUM TENSILE STRENGTH:130,000 LB/IN;MINIMUM YIELD STRENGTH:90,000 LB/IN | | THICKNESS | 0.122 INCHES MINIMUM AND 0.177 INCHES MAXIMUM |
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