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National Stock Number:
5310-00-853-5672
Federal Supply Class:
5310
National Item Identification Number:
008535672
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:
| 763446 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | STEEL COMP 348 OR | | STEEL COMP 321 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.267 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | RECTANGULAR | | LENGTH | 0.760 INCHES NOMINAL | | WIDTH ACROSS FLATS | 0.560 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.127 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98897 | | DESIGN CONTROL REFERENCE | 763446 |
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