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National Stock Number:
5310-00-531-1400
Federal Supply Class:
5310
National Item Identification Number:
005311400
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:
| 2074181-2307 | 27914 | HONEYWELL INTERNATIONAL INC DBA HONEYWELL | | 4912549-02 | 03956 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 4912549-02 | 90536 | LOCKHEED MARTIN CORP | | 82278-155 | 02734 | LOCKHEED MARTIN CORPORATION | | 82278-155 | 49671 | LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES | | B30A1000M15B | 99872 | ENTRON INDUSTRIES LIMITED PARTNERSHIP DBA ENTRON INDUSTRIES PROPERTY DIV | | N401P8E | 24446 | GENERAL ELECTRIC COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.182 INCHES MINIMUM AND 0.193 INCHES MAXIMUM | | OVERALL DIAMETER | 0.375 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 11 OVERALL | | NONDEFINITIVE SPEC/STD DATA | A TYPE AND 1 GRADE AND E CLASS | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL OVERALL | | THICKNESS | 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
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