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National Stock Number:
5310-01-337-7035
Federal Supply Class:
5310
National Item Identification Number:
013377035
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:
| 11628332-7 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 23-09114-003 | 64678 | DAIMLER TRUCK NORTH AMERICA LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.265 INCHES MINIMUM AND 0.275 INCHES MAXIMUM | | OVERALL DIAMETER | 0.84 INCHES MINIMUM AND 0.86 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A325 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL UNS K02706 OR STEEL UNS K11900 OR STEEL UNS K12033 OR STEEL UNS K12059 OR STEEL UNS K12238 OR STEEL UNS K12254 OR STEEL UNS K13643 OR STEEL UNS K14358 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 49-00005-403,CAGEC 64678 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THICKNESS | 0.12 INCHES MINIMUM AND 0.13 INCHES MAXIMUM |
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