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National Stock Number:
5310-12-177-5680
Federal Supply Class:
5310
National Item Identification Number:
121775680
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:
| 90863 | C7773 | DEGEN-LOGISTIK-KOBLENZ GMBH | | 91003320 | C1544 | TRW AUTOMOTIVE GMBH -STANDORTALFDORF- |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 11,2 MILLIMETERS MINIMUM AND 11,3 MILLIMETERS MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DIN1624, BESCHAFFENHEIT K60 ASSN STD 1ST MATERIAL RESPONSE OR DIN17100, BESCHAFFENHEIT K ASSN STD 2ND MATERIAL RESPONSE | | MATERIAL | STEEL COMP 1.0330 OR STEEL COMP 1.0530 | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 21,0 MILLIMETERS NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DIN267/9, SCHLUESSEL A5C ASSN STD SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | CHROMATE AND ZINC | | THICKNESS | 2,5 MILLIMETERS NOMINAL |
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