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National Stock Number:
5310-01-563-6770
Federal Supply Class:
5310
National Item Identification Number:
015636770
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:
| 8196956 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 8196956-1 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HARDNESS RATING | 38.0 ROCKWELL C NOMINAL | | HOLE DIAMETER | 0.332 INCHES NOMINAL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | (INAVY)STEPPED WASHER;(DRAWING)STEPPED WASHER(8196956) | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 1.250 INCHES NOMINAL | | SPECIAL FEATURES | EXPORT CONTROL-NOT TO BE DISTRIBUTED OUTSIDE OF US;MINIMUM YIELD STRENGTH:115KSI;MINIMUM TENSILE STENGTH:140KSI;STEPPED WASHER TOP DIAMETER:0.720IN NOMINAL;STEPPED WASHER BOTTOM DIAMETER:0.595IN NOMINAL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.100 INCHES NOMINAL |
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