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National Stock Number:
5310-00-807-6218
Federal Supply Class:
5310
National Item Identification Number:
008076218
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:
| 365429 | 00679 | CASTLE INDUSTRIES INC. OF CALIFORNIA | | 365429 | 27068 | DCP SPRING ACQUISITION COMPANY, INC. | | 365429 | 30201 | TREGO INC | | 365429 | 62224 | SATELLITE AEROSPACE, INCORPORATED | | 365429 | 77445 | RTX CORPORATION | | 365429 | 81924 | ATOMIC ENERGY COMMISSION OAK RIDGE OPNS OFFICE | | 365429 | 92830 | BARNES GROUP INC. | | 365429 | JA269 | TOKYO JUDOI KOGYO K.K. | | 365429 | S0554 | TOKYO JUDOGI KOGYO CO. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | AS FABRICATED | | HOLE DIAMETER | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM | | OVERALL DIAMETER | 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES INNER | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE FINISH | 90.0 MICROINCHES OUTER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |
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