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National Stock Number:
5310-12-198-3572
Federal Supply Class:
5310
National Item Identification Number:
121983572
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:
| (241)A39630-124815 | A3963 | ASTRA VEICOLI INDUSTRIALI SPA | | 0-124815 | A3963 | ASTRA VEICOLI INDUSTRIALI SPA | | 0770 032 995 | D8124 | ZF FRIEDRICHSHAFEN AG | | 0770032995 | D8124 | ZF FRIEDRICHSHAFEN AG | | 1PA39630-124815 | A3963 | ASTRA VEICOLI INDUSTRIALI SPA | | 241 A39630-124815 | A3963 | ASTRA VEICOLI INDUSTRIALI SPA |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 41,0 ROCKWELL C MINIMUM AND 45,0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 8,4 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 17222 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 1.1231 | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 17,0 MILLIMETERS NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DIN50961, VERFAHREN FE/ZN8CC ASSN STD SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | CHROMATE AND ZINC | | THICKNESS | 1,5 MILLIMETERS NOMINAL |
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