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National Stock Number:
5310-01-031-4424
Federal Supply Class:
5310
National Item Identification Number:
010314424
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:
| 324 2541 | 21340 | ITT TELECOM PRODUCTS CORP NETWORK SYSTEMS DIV | | 330 1405 | 81495 | KOEHRING CRANES INC DBA TEREX CRANES DIV WAVERLY OPERATIONS | | 330 1405 | 8E499 | KOEHRING CRANES AND EXCAVATORS INC SUB OF NORTHWEST ENGINEERING CO | | 330V1000 | 0LRM3 | TEREX USA, LLC | | 810557 | 1LW55 | BORGWARNER PDS (ANDERSON), L.L.C. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | YELLOW OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM | | OVERALL DIAMETER | 0.562 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1060 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | ZINC AND DICHROMATE OVERALL | | THICKNESS | 0.050 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
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