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National Stock Number:
5310-00-274-4546
Federal Supply Class:
5310
National Item Identification Number:
002744546
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:
| 10505776 | 56161 | GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION | | 3249 | 24975 | PRESTOLITE ELECTRIC INC | | 9B6867 | 11083 | CATERPILLAR INC | | 3249 | 35510 | PRESTOLITE ELECTRIC INC | | 6AX1 | 45152 | OSHKOSH CORP | | 6AX1 | 75Q65 | OSHKOSH DEFENSE LLC | | Z095003249 | 45152 | OSHKOSH CORP | | Z095003249 | 75Q65 | OSHKOSH DEFENSE LLC |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.505 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.995 INCHES MINIMUM AND | | 1.005 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.0548 INCHES MINIMUM AND | | 0.0648 INCHES MAXIMUM | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 42.0 ROCKWELL C MAXIMUM | | FEATURES PROVIDED | CASEHARDENED |
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