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National Stock Number:
5310-01-502-4820
Federal Supply Class:
5310
National Item Identification Number:
015024820
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:
| 4M398-7A | 06970 | CABLECRAFT MOTION CONTROLS LLC | | 4M398-7A | 76301 | THE BOEING COMPANY | | 4M398-7A | 86928 | SEASTROM MANUFACTURING CO INC |
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Techincal Specification:
| CENTER HOLE WIDTH | 1.385 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | DEE | | CRITICALITY CODE JUSTIFICATION | AGAV | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.255 INCHES NOMINAL | | LENGTH | 2.011 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY) WASHER, TAB--SAFETY WIRE | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PERIPHERAL SHAPE STYLE | OVAL | | RADIUS AT SMALL END | 1.254 INCHES NOMINAL | | RADIUS AT LARGE END | 1.514 INCHES NOMINAL | | SPECIAL FEATURES | SMALLER END OF WASHER IS TABBED BACK 40-50 DEGREES BEGINNING AT 0.880 INCHES FROM WASHER CENTER HOLE | | WIDTH | 1.514 INCHES NOMINAL | | THICKNESS | 0.030 INCHES NOMINAL |
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