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National Stock Number:
5310-00-143-5579
Federal Supply Class:
5310
National Item Identification Number:
001435579
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:
| 10-31048PCA06023 | 59501 | UNISON INDUSTRIES LLC | | 10-31048PCA06023 | 77820 | AMPHENOL CORP | | 10-31048PCA060231 | 06840 | BENDIX CORP THE | | 10-31048PCA060231 | 77820 | AMPHENOL CORP | | 2-171Z | 59501 | UNISON INDUSTRIES LLC | | 2-171Z | 77820 | AMPHENOL CORP | | A060231 | 58275 | SASCO INC CANADIAN DIV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.136 INCHES MINIMUM AND 0.144 INCHES MAXIMUM | | OVERALL DIAMETER | 0.308 INCHES MINIMUM AND 0.316 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE HARD ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM |
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