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National Stock Number:
5310-01-253-7521
Federal Supply Class:
5310
National Item Identification Number:
012537521
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:
| 535373-3 | 09772 | WEST COAST LOCKWASHER CO., INC. | | 535373-3 | 1L160 | SUPERIOR WASHER & GASKET CORP. | | 535373-3 | 86928 | SEASTROM MANUFACTURING CO INC | | 535373-3 | 96214 | RAYTHEON COMPANY |
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Techincal Specification:
| MATERIAL | STEEL CORROSION RESISTING OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL2,F-33 AND TI DWG807572 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.115 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.016 INCHES NOMINAL | | SPECIAL FEATURES | MADE FROM NAS620C4L | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, FLAT REDUCED OUTSIDE DIA, BLACK OXIDE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 96214 | | DESIGN CONTROL REFERENCE | 535373-3 |
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