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National Stock Number:
5310-01-021-1523
Federal Supply Class:
5310
National Item Identification Number:
010211523
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:
| S8154-53C025 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC | | S8154-53C025 | 70210 | HONEYWELL INTERNATIONAL INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM | | OVERALL DIAMETER | 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 TY 301 COND 1/4 HARD,1/2 HARD OR FULL HARD MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 TY 302 COND 1/4 HARD FINISH 2B MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.022 INCHES MINIMUM AND 0.027 INCHES MAXIMUM |
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