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National Stock Number:
5310-00-618-1999
Federal Supply Class:
5310
National Item Identification Number:
006181999
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:
| 41232-34 | 11599 | TRIUMPH ENGINE CONTROL SYSTEMS LLC | | 41232-34 | C0297 | GOODRICH CONTROL SYSTEMS GMBH |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND W/FLATS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.470 INCHES MINIMUM AND 0.475 INCHES MAXIMUM | | HOLE WIDTH ACROSS FLATS | 0.425 INCHES MINIMUM AND 0.431 INCHES MAXIMUM | | OVERALL DIAMETER | 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 440C OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT | OXIDE FILM OVERALL | | THICKNESS | 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
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