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National Stock Number:
5310-12-175-5412
Federal Supply Class:
5310
National Item Identification Number:
121755412
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:
| 001372-0000 | D8218 | ROTZLER GMBH + CO. KG | | 17X24X1DIN988 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | DIN988-17X24X1 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | PS17X24X1 | D8090 | SEEGER-ORBIS GMBH & CO. OHG |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 44,0 ROCKWELL C MINIMUM AND 49,0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 17,05 MILLIMETERS MINIMUM AND 17,23 MILLIMETERS MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DIN1624, BESCHAFFENHEIT K50BK ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 1.0330 | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 23,725 MILLIMETERS MINIMUM AND 23,935 MILLIMETERS MAXIMUM | | TEST DATA DOCUMENT | D8286-DIN988/MAR90/ STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). | | THICKNESS | 0,95 MILLIMETERS MINIMUM AND 1,00 MILLIMETERS MAXIMUM |
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