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National Stock Number:
5310-01-179-9798
Federal Supply Class:
5310
National Item Identification Number:
011799798
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:
| 00852681 PIECE 27 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE | | 10T91900.0036 | 7PZX0 | FAIRBANKS MORSE, LLC | | 10T91900.0036 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE | | 907167-1 | 82796 | COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE | | 907167-1 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| MATERIAL | STEEL COMP 1018 OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 4.000 INCHES MINIMUM AND | | 4.002 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 6.750 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.995 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | | HARDNESS RATING | 183.0 BRINELL MINIMUM AND | | 217.0 BRINELL MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES TOP | | 32.0 MICROINCHES BOTTOM | | 63.0 MICROINCHES INNER | | HEAT TREATMENT | HARDENED AND | | TEMPERED |
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