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National Stock Number:
5310-00-286-9641
Federal Supply Class:
5310
National Item Identification Number:
002869641
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:
| 6711969 | 24617 | GENERAL MOTORS CORP | | 6711969 | 51226 | ASSOCIATED AEROSPACE ACTIVITIES INC | | 6711969 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.265 INCHES MINIMUM AND 0.275 INCHES MAXIMUM | | LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6355 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | RECTANGULAR | | WIDTH ACROSS FLATS | 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.071 INCHES MINIMUM AND 0.079 INCHES MAXIMUM |
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