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National Stock Number:
5310-00-993-9422
Federal Supply Class:
5310
National Item Identification Number:
009939422
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:
| 928C961P5 | 89954 | BAE SYSTEMS CONTROLS INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | HARD OR HALF HARD | | HOLE DIAMETER | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM | | OVERALL DIAMETER | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 301 OR STEEL COMP 302 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-13924 MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE AND OXIDE FILM OVERALL | | THICKNESS | 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM |
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