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National Stock Number:
5310-66-151-1394
Federal Supply Class:
5310
National Item Identification Number:
661511394
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:
| 91007 | Z0655 | THALES AUSTRALIA - BENDIGO LAND & JOINT SYSTEMS |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | GREEN OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 20.0 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,FLAT,ROUND,M20 | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 37.0 MILLIMETERS NOMINAL | | SPECIAL FEATURES | WASHER ROUND FLAT TO AS 1237 OR BS 3410, HEAT TREATMENT FOR RELIEF OF HYDROGEN EMBRITTLEMENT TO AS 1897 | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AS 1789 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 3.0 MILLIMETERS NOMINAL |
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