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National Stock Number:
5310-01-220-3102
Federal Supply Class:
5310
National Item Identification Number:
012203102
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:
| S8154-82C025 | 2N935 | BOEING DISTRIBUTION SERVICES X, INC. | | S8154-82C025 | 70210 | HONEYWELL INTERNATIONAL INC. |
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Techincal Specification:
| MATERIAL | STEEL COMP 301 OR | | STEEL COMP 302 OR | | STEEL COMP 303 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059,COND 1/4 HARD MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-5059,COND 1/2 HARD MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-5059,COND HARD MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-5059,COND 1/4 HARD,FINISH NO. 2B MIL SPEC 2ND MATERIAL RESPONSE OR | | ASTM A582 ASSN STD 3RD MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.525 INCHES MINIMUM AND | | 0.535 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.110 INCHES MINIMUM AND | | 1.124 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.025 INCHES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM |
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