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National Stock Number:
5310-00-052-8269
Federal Supply Class:
5310
National Item Identification Number:
000528269
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:
| 528039 | 70210 | HONEYWELL INTERNATIONAL INC. | | 528039 | 72599 | ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM | | OVERALL DIAMETER | 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | PERIPHERAL SHAPE STYLE | DEE | | WIDTH | 0.245 INCHES MINIMUM AND 0.252 INCHES MAXIMUM | | SURFACE FINISH | 62.0 MICROINCHES INNER | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES OUTER | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
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