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National Stock Number:
5310-01-081-2518
Federal Supply Class:
5310
National Item Identification Number:
010812518
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:
| 19AS572 | 45152 | OSHKOSH CORP | | 19AS572 | 75Q65 | OSHKOSH DEFENSE LLC | | 22962-6 | 28158 | HME, INC. |
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Techincal Specification:
| MATERIAL | STEEL COMP 1040 OR | | STEEL COMP 1060 OR | | STEEL COMP 1064 OR | | STEEL COMP 1065 OR | | STEEL COMP 1070 OR | | STEEL COMP 1075 OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 1.052 INCHES MINIMUM AND | | 1.072 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.740 INCHES MINIMUM AND | | 1.760 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.109 INCHES NOMINAL | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM | | SURFACE FINISH | 40.0 MICROINCHES TOP | | 40.0 MICROINCHES BOTTOM | | SPECIAL FEATURES | 80.0 MAX MICROINCHES FOR TOP AND BOTTOM SURFACES |
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