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National Stock Number:
5310-00-596-9479
Federal Supply Class:
5310
National Item Identification Number:
005969479
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:
| 7603478 | 18355 | THE BOEING COMPANY | | 7603478 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | A11398 | 15659 | CLEVITE AN IMPERIAL CLEVITE CO POWDER METAL PRODUCTS DIV | | 8328177 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 7603478 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL COMP 1009 OR | | STEEL COMP 1015 OR | | STEEL COMP 1018 OR | | STEEL COMP 1020 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-698 HR PO OR CR FED SPEC ALL MATERIAL RESPONSES OVERALL | | CENTER HOLE SHAPE STYLE | DEE | | HOLE DIAMETER | 1.484 INCHES MINIMUM AND | | 1.547 INCHES MAXIMUM | | CENTER HOLE WIDTH | 1.383 INCHES MINIMUM AND | | 1.388 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 2.219 INCHES MINIMUM AND | | 2.281 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.141 INCHES MINIMUM AND | | 0.156 INCHES MAXIMUM | | HARDNESS RATING | 75.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND | | 79.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM | | FEATURES PROVIDED | CASEHARDENED |
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