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National Stock Number:
5310-01-047-8877
Federal Supply Class:
5310
National Item Identification Number:
010478877
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:
| 209-040-108-1 | 04YE2 | VALCORE MANUFACTURING LLC | | 209-040-108-1 | 54878 | ROTAIR AEROSPACE CORP | | 209-040-108-1 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.890 INCHES NOMINAL | | OVERALL DIAMETER | 1.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729,COND N MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626,COND D1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES | | THICKNESS | 0.0905 INCHES MINIMUM AND 0.0915 INCHES MAXIMUM |
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