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National Stock Number:
5310-01-133-0197
Federal Supply Class:
5310
National Item Identification Number:
011330197
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:
| 10109667 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 181940-2 | 71791 | CURTISS-WRIGHT CONTROLS, INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.835 INCHES MINIMUM AND 0.836 INCHES MAXIMUM | | OUTSIDE LEFT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | OUTSIDE RIGHT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | OVERALL DIAMETER | 1.128 INCHES MINIMUM AND 1.132 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8844,CLASS 3,COND E MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL UNS K44220 OR STEEL UNS K44315 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 16.0 MICROINCHES OUTER | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THICKNESS | 0.192 INCHES MINIMUM AND 0.194 INCHES MAXIMUM |
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