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National Stock Number:
5310-12-186-8999
Federal Supply Class:
5310
National Item Identification Number:
121868999
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:
| A7,4DIN125-A2-70 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | A7-4DIN125-A2 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | A7-4DIN125A2 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | DIN125-A7,4-140HV-A2 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | DIN125-A7,4-A2-70 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | DIN125A7-4A2 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 140,0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 250,0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM | | HOLE DIAMETER | 7,4 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | DIN267/11 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP A2 | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 14,0 MILLIMETERS NOMINAL | | TEST DATA DOCUMENT | D8286-DIN125 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). | | THICKNESS | 1,6 MILLIMETERS NOMINAL |
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