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National Stock Number:
5310-01-158-9053
Federal Supply Class:
5310
National Item Identification Number:
011589053
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:
| 12414473 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12414473-017 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 2AW725 | 45152 | OSHKOSH CORP | | 2AW725 | 75Q65 | OSHKOSH DEFENSE LLC | | 991 0565 | 34914 | HIAB USA INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 17.0 MILLIMETERS NOMINAL | | OVERALL DIAMETER | 30.0 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 8.8,FSCM 21969 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 113784 POUNDS PER SQUARE INCH | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 3.0 MILLIMETERS NOMINAL |
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