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National Stock Number:
5310-00-018-0268
Federal Supply Class:
5310
National Item Identification Number:
000180268
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:
| 11629-1 | 58037 | ELLIOTT B W MFG CO LLC FLEX SHAFT AND VALVE CONTROL PRODUCT LINES | | 11629-1 | 72166 | B.W. ELLIOTT MANUFACTURING CO., LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.312 INCHES NOMINAL | | OVERALL DIAMETER | 0.620 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4631 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | THICKNESS | 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM |
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