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National Stock Number:
5310-01-591-4638
Federal Supply Class:
5310
National Item Identification Number:
015914638
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:
| 91-BS-78505-2C | 13940 | MORITO SCOVILL AMERICAS, LLC | | 9D0182-4 | 76301 | THE BOEING COMPANY | | 9D0182-4 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE LENGTH | 0.660 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ELLIPTICAL | | CENTER HOLE WIDTH | 0.660 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | INSIDE RADIUS | 0.344 INCHES NOMINAL | | LENGTH | 1.000 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | -4 WASHER | | MATERIAL | COPPER ALLOY OVERALL | | OUTSIDE RADIUS | 0.770 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ELLIPTICAL | | THICKNESS | 0.015 INCHES NOMINAL | | WIDTH | 0.410 INCHES NOMINAL |
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