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National Stock Number:
5310-01-454-3538
Federal Supply Class:
5310
National Item Identification Number:
014543538
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:
| 211041663 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402201 FIND 28 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 751-6402202 FIND 28 | 53711 | NAVAL SEA SYSTEMS COMMAND | | MS16212-7 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.927 INCHES MINIMUM AND 0.947 INCHES MAXIMUM | | OVERALL DIAMETER | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 651 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.136 INCHES MINIMUM AND 0.192 INCHES MAXIMUM |
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