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National Stock Number:
5310-00-274-9923
Federal Supply Class:
5310
National Item Identification Number:
002749923
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:
| 151241 | 99166 | SUNDSTRAND CORP SUNDSTRAND HYDRAULICS DIV | | 612411 | 99167 | HAMILTON SUNDSTRAND CORPORATION | | FF-W-92B(1) NOT 1 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | 686870 | 99167 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM | | OVERALL DIAMETER | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM | | MATERIAL | STEEL OR STEEL COMP 1212 OR STEEL COMP 8620 OR STEEL COMP 1117 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
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