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National Stock Number:
5310-00-123-3378
Federal Supply Class:
5310
National Item Identification Number:
001233378
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:
| 5310PL2210632 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | SS4409-001 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | SS4409-001 | D1081 | AIRBUS DEUTSCHLAND GMBH -WERK BREMEN- |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OR | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR | | MIL-P-8585 MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.970 INCHES MINIMUM AND | | 0.990 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.490 INCHES MINIMUM AND | | 1.510 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.030 INCHES MINIMUM AND | | 0.050 INCHES MAXIMUM | | HEAT TREATMENT | T-3 SOLUTION HEAT TREATED, COLD WORKED OR | | T-4 SOLUTION HEAT TREATED, NATURAL AGED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | SS4409-001 |
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