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National Stock Number:
5310-01-567-3370
Federal Supply Class:
5310
National Item Identification Number:
015673370
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:
| 86629891 | 10988 | CNH INDUSTRIAL AMERICA LLC | | 87028359 | 10988 | CNH INDUSTRIAL AMERICA LLC | | STPF520 | 10988 | CNH INDUSTRIAL AMERICA LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 19.8 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | HARDENED STEEL FLAT WASHER-METIC | | III SUPPLEMENTARY FEATURES | HARDENED STEEL WASHER 1040 TO 1065 PER CASE MC 353 THROUGH HARDEN AND TEMPERED PER CASE SPEC P-7 TO 36-42 HRC | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 41.5 MILLIMETERS NOMINAL | | SPECIFICATION/STANDARD DATA | 10988 STPA020 MANUFACTURERS SPECIFICATION AND ISO 887 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND ISP 7415 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND ISO 4759/3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 5.0 MILLIMETERS NOMINAL |
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