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National Stock Number:
5310-01-309-7076
Federal Supply Class:
5310
National Item Identification Number:
013097076
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:
| TS661-20 | 98889 | AEROCONTROLEX GROUP, INC. |
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Techincal Specification:
| SPECIAL FEATURES | SURFACE TREATMENT ELECTROFILM NO. 1000 | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.196 INCHES MINIMUM AND | | 0.200 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.310 INCHES MINIMUM AND | | 0.314 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.018 INCHES MINIMUM AND | | 0.022 INCHES MAXIMUM | | MATERIAL | STEEL COMP 302 OR | | STEEL COMP 301 OR | | STEEL COMP 303 OVERALL |
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