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National Stock Number:
5310-00-409-9579
Federal Supply Class:
5310
National Item Identification Number:
004099579
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:
| 213180 | 99193 | HONEYWELL INTERNATIONAL INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM | | HOLE DIAMETER | 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | OVERALL DIAMETER | 0.670 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 631 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | +6402 FSCM 91547 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE FINISH | 63.0 MICROINCHES COUNTERBORE WALL | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.056 INCHES MINIMUM AND 0.058 INCHES MAXIMUM |
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